2Exercise 1, p .76 . 1. I am studying here since last January. Correct the errors in verb tense usage.1. I am studying here since last January.2. By the time Hassan returned to his country, he is away from home for more thanthree years.1. I have been studying here since last January.2. By the time Hassan returned to his country, he had been away from home for more than three years.
3Exercise 1, p .76 .3. After I will graduate, I going to return to my hometown.4. By the end of the 21st century, man will had discovered the cure for the common cold.3. After I graduate, I am going to return to my hometown.4. By the end o f the 21st century, man will have discovered the cure for the common cold.
4Exercise 1, p .76 .5. I want to get married, but I don’t meet the right person yet.6. I have been seeing that movie three times, and now I am wanting to see it again.5. I want to get married, but I haven’t met the rightperson yet.6. I have seen that movie three times, and now I w antto see it again.
5Exercise 1, p .76 .7. I am not like my job. My brother wants me to quit. I am thinking he is right.8. While I’m study tonight, I’m going to listen to classical music.7. I don’t like my job. My brother wants me to quit. Ithink he is right.8. While I ’m studying tonight, I ’m going to listen toclassical music.
6Exercise 1, p .76 .9. We washed the dishes and clean up the kitchen after our dinner guests were leaving.10. My neighbors are Mr. and Mrs. Sanchez. I know them ever since I am a child.9 . We washed the dishes and cleaned up the kitchenafter our dinner guests left.10. My neighbors are Mr. and Mrs. Sanchez. I haveknown them ever since I was a child.
7Exercise 1, p .76 .11. Many scientists believe there is a major earthquake in California in the near future.11. Many scientists believe there will be a majorearthquake in California in the near future.
8Exercise 2, p.76 .Complete the sentences with any appropriate tense of the verbs in parentheses.1. John is in my English class. He (study) ____ English this semester. He (take, also) ___ some other . His classes (begin) ___ at 9:00 every day.2. Yesterday John ate breakfast at 8:00. He (eat, already)___breakfast when he (leave) ____ for class at 8:45.3. John (eat, always) _____breakfast before he (go) ___ to class. Tomorrow before he (go) ____ to class, he (eat) ____ breakfast.1. is studying is also taking begin2. had already eaten left3. always eats goes goes will eat / is going to eat
9Exercise 2, p.76 .4. John is in class every morning from 9:00 to 12:00. Two days ago, I (call) _____ him at 11:30, but I could not reach him because he (attend) _____ class at that time.5. Don’t try to call John at 11:30 tomorrow morning because he (attend) _____ class at that time.6. Yesterday John took a nap from 1:00 to 2:00. I arrived at 1:45. When I (get) _____ there, John (sleep )____He (sleep) ____ for 45 minutes by the time I got there.4. called was attending5. will be attending6. got was sleeping had been sleeping
10Exercise 2, p.76 .7. Right now John (take) ____ a nap. He (fall) ____ asleep an hour ago. He (sleep) ____ for an hour.8. Tomorrow, after he (eat) ____ dinner, John (go) ____to a movie. In other words, he (eat) ____ dinner by thetime he (go) ____ to the movie.9. Three days ago, John (start) _____ to read The Old Man and the Sea, a novel by Ernest Hemingway. It is a long novel. He(finish, not) ____ reading it yet. He (read) ______ it because his English teacher assigned it.7. is taking . . fell has been sleeping8. eats is going to go / will go will have eaten. . . goes9 . started hasn’t finished has been reading
11Exercise 2, p.76 .10.Since the beginning of the semester, John (finish) ___ three novels. Right now he (read) ___ The Old Man and the Sea. He (read) ____ that novel for the past three days. He (intend) ___ to finish it by next week. In his lifetime, he (read) ___ many novels, but this is the first Hemingway novel he(read, ever)___.10. has finished is reading has been reading intends has read has ever read
12Exercise 6, p. 79.Complete the sentences with any appropriate tense of the verbs in parentheses.Dear Anna,I (1 get) _____ your long about two weeks ago and (2try) _____ to find time to write you back ever since. I (3be) _____ very busy lately. In the past two weeks, I (4have) _____ four tests, and I have another one next week. In addition, a friend (5stay) _____with me since last Thursday. She wanted to see the city, so we (6spend) ____ a lot of time visiting some of the interesting places here. We (7be) _____ to the zoo, the art museum, and the botanical gardens.1. got2. have been trying3. have been4. have had / ’ve had5. has been staying6. have been spending /have spent / are spending7. have been
13Exercise 6, p. 79.Yesterday we (8go) ______ to the park and (9watch) ____ a balloon race. Between showing her the city and studying for my exams, I (10have, barely) _____enough time to breathe.Right now it (11be) _____ 3:00 A.M., and I (12sit) ______ at my desk. I (13sit) ___here for five hours doing my studying. My friend’s plane (14leave) ____in a few hours, so I (15decide) _____ not to go to bed. That’s why I (16write) ______ to you at such an early hour in the day. I (17get) _____a little sleepy, but I would rather stay up. I (18take) _____ a nap after I (19 get) ____ back from taking her to the airport. How (20you, get) _____ along? How (21your classes, go) _____ ? Please write soon.8. went9. watched10. have barely had11. is12. am sitting13. have been sitting14. leaves / is going to leave / will leave15. decided / have decided16. am writing17. am getting18. am going to take / will take19. get20. are you getting21. are your classes going
14Exercise 9, p. 80.Complete the sentences with the words in parentheses. Use any appropriate tense.Almost every part of the world (1experience) _____an earthquake in recent years, and almost every part of the world (2experience) _____ earthquakes in the years to come. Since the ancient Chinese (3begin) _____ to keep records several thousand years ago, more than 13million earthquakes (4occur)_____ worldwide by some estimates.has experienced…will experience / is going to experience …began... have occurred
15Exercise 9, p. 80.What (5cause) _____ earthquakes? Throughout time, different cultures(6develop) _____myths to explain these violent earth movements.From India comes the story of six strong elephants who (7hold)____ up the earth on their heads. Whenever one elephant (8move)______ its head, the earth trembles.causes…have developed…hold / are holding…moves
16Exercise 9, p. 80.According to a Japanese myth, a playful catfish lives in the mud under the earth. Whenever it feels like playing, it (9wave) _____ its fat tail around the mud. The result? Earthquakes.waves
17Exercise 9, p. 80.Nowadays, although scientists (10know) ____more about the causes of earthquakes, they still cannot prevent the terrible damage. One of the strongest quakes in the last hundred years (11happen) ___in Anchorage, Alaska, on March 24, 1964, at about six o’clock in the evening. When the earthquake (12strike) ____that evening, many families (13sit) __________ down to eat dinner.know…happened…struck…were sitting
18Exercise 9, p. 80.People in the city (14find,suddenly) ______ themselves in the dark because most of the lights in the city went out when the earthquake occurred. Many people (15die) ____ instantly when tall buildings (16collapse)____and (17send)_____ tons of brick and concrete crashing into the streets. When (18the next earthquake, occur)____?suddenly found…died…collapsed…sent…will the next earthquake occur / is the next earthquake going to occur
19Exercise 9, p. 80.No one really knows for sure. Interestingly enough, throughout history animals (19help, often) _____ people predict earthquakes shortly before they happen. At present, some scientists (20study) _______ catfish because catfish swim excitedly just before an earthquake.have often helped…are studying
20Exercise 9, p. 80.According to some studies, snakes, monkeys, and rodents (21appear, also) _____ to be sensitive to the approach of violent movement in the earth’s surface. Some animals (22seem) ____ to know a great deal more than humans about when an earthquake will occur.also appear…seem
21Exercise 9, p. 80.In recent years, scientists (23develop) ________sensitive instruments. Perhaps someday the instruments (24be)___ able to give us a sufficiently early warning so that we can be waiting calmly in a safe place when the next earthquake (25strike)______.have developed…will be / are going to be…strikes
22Exercise 13, p. 82.Correct the errors in verb tense usage.1 . I haven’t been in this town very long. I come here just two weeks ago.1. I haven’t been in this town very long. I came here just two weeks ago.
23Exercise 13, p. 82.2. Dormitory life is not quiet. Everyone shouted and make a lot of noise in the halls.2. Dormitory life is not quiet. Everyone shouts and makes a lot of noise in the halls.
24Exercise 13, p. 82.3. My friends will meet me when I will arrive at the airport.3. My friends will meet me when I arrive at the airport.
25Exercise 13, p. 82.4. Hasn’t anyone ever tell you to knock on the door before you enter someone else’s room?Didn’t your parents taught you that?4. Hasn’t anyone ever told you to knock on the door before you enter someone else’s room? Didn’t your parents teach you that?
26Exercise 13, p. 82.5. The phone rung while I doing the dishes. I dry my hands and answer it. When I am hear my husband’s voice, I very happy.5. The phone rang while I was doing the dishes. Idried my hands and answered it. When I heardmy husband’s voice, I was very happy.
27Exercise 13, p. 82.6. I am in the United States for the last four months. During this time, I had done many things and saw many places.6. I have been in the United States for the last four months. During this time, I have done many things and seen many places.
28Exercise 13, p. 82.7. When the old man started to walk back to his hut, the sun has already hided itself behindthe mountain.7. When the old man started to walk back to his hut,the sun had already hid / hidden itself behind themountain.
29Exercise 13, p. 82.8 . While I am writing my composition last night, someone knocks on the door.8. While I was writing my composition last night,someone knocked on the door.
30Exercise 13, p. 82. 9. Why did you writing a children’s book? 10. I’m really glad you to visit my hometown next year.9. Why did you write a children’s book?10. I’m really glad you are going to / will visit myhometown next year.
31Exercise 13, p. 82.11. While I was visitting my cousin in Los Angeles, we went to a restaurant and eat Thai food.11. While I was visiting my cousin in Los Angeles, we went to a restaurant and ate Thai food.
32Exercise 13, p. 82.12. When I was a child, I viewed things from a much lower height. Many physical objects around me appear very large. When I want to move something such as a chair, I need help.12. When I was a child, I viewed things from a muchlower height. Many physical objects around meappeared very large. When I wanted to movesomething such as a chair, I needed help.
33Exercise 13, p. 82.13. When I was in my country, I am afraid to come to the United States. I thought I couldn’t walk outside at night because of the terrible crime. But now I am having a different opinion. I live in this small town for three months and learn that there is very little crime here.13. When I was in my country, I was afraid to come to the United States. I thought I couldn’t walk outsideat night because of the terrible crime. But now I have a different opinion. I have lived in this small town for three months and (have) learned that there is very little crime here.