2Exercise 1, p. 13.2. I don’t know Sam’s wife. 3. My roommate usually watches television, listens to music, or goes out in the evening. 4. When I turned the key, the car started. 5. Air consists of oxygen, nitrogen, and other gases.
3Exercise 1, p. 13.6. The children drew some pictures in school this morning. 7. Right now Sally is in the kitchen eating breakfast. 8. While I was driving home last night, I heard a strange noise in the engine. 9. A: What are you talking about? B: I am talking about the political situation in my country.
4Exercise 4. p. 15Complete the sentences with the simple present or the present progressive form of the verbs in parentheses.2. Kristin (wash) _______ her hair every other day or so.3. Tony (sit, usually)______ in the front row during classes, but today he (sit) _________ in the last row.4. Please be quiet. I (try) _________ to concentrate.5. (you, lock, always) ______ _____the door to your apartment when you leave?2. washes usually sits . . .is sitting am trying Do you always lock
5Exercise 4. p. 156. I wrote to my friend last week. She hasn’t answered my letter yet. I (wait, still)____ for a reply.7. After six days of rain, I’m glad that the sun (shine) ____ today.8. Every morning, the sun (shine) ____ in my bedroom window and (wake) _____ me up.6. am still waiting 7. is shining shines wakes
6Exercise 9,p.18 Choose the correct completions. 2. Ask Ahmed for your notebook. He _______it.a. has b. is having3. Your notebook is over there. Ahmed _______it.a. holds b. is holding4. Look at Olga. She’s smiling and dancing. She _______a good time.a. Has b. is having5. Relax. You don’t have to tell me any more about it. I _______you.a. believe b. am believing6. Dinosaurs became extinct a long time ago. They _______anymore.a. don’t exist b. aren’t existing2 a b b 5 a 6 a 7 a
7Exercise 10, p18Complete the sentences. Use the simple present or the present progressive of the verbs in parentheses.1. Look. It (begin) ___________ to rain. Unfortunately, I (have, not*)_________my umbrella with me. I (own, not) __________ an umbrella. Spiro is lucky. He (wear) __________ a raincoat. I (wear) __________ a waterproof hat on rainy days.2. Right now Martha is in the science building. The chemistry experiment she (do)_________ is dangerous, so she (be) ________ very careful. She (want, not) _______to spillany of the acid. She (be, always)._________careful when she does a chemistry experiment.1. is beginning don’t have don’t own Is wearing wear 2. is doing is being doesn’t want is always
8Exercise 10, p183. Right now I (look) _____ at Nicole. She (look) ______angry. I wonder what’s the matter. She (have) _____ a frown on her face.She certainly (have, not) _______any fun right now.4. A: How (you, like) _______the soup? (it, need) _______more garlic?B: No, it (taste) ______delicious. It (remind) ______ me of my grandmother’s soup.3. am looking looks has isn’t having 4. A: do you like Does it need B: tastes reminds
9Exercise 10, p18 5. A: What (you, look) _________ at? B: You! You (look) _______like your father.A: (you, think) ______so? Many people tell me I (resemble) _______my mother.B: I (see) ______your father’s face when I look at you.5. A: are you looking B: look A: Do you think resemble B: see
10Exercise 10, p.186. Right now I (look) ________around the classroom. Yoko (write)_______in her book. Carlos (bite) ________ his pencil.Wan-Ning (scratch) ______ his head. Ali (stare) ______out the window. He (seem) _______ to be daydreaming, but perhaps he (think) ______ hard about verb tenses. What (you, think) ______ Ali (do) ____ ?6. am looking is writing is biting Is scratching is staring seems is thinking do you think is doing
12Exercise 25, p. 28.1. Rita stood under a tree when it began to rain. 2. Rita was standing under a tree when it began to rain.
13Exercise 27, p.30Complete the sentences. Use the simple past or the past progressive of the verbs in parentheses2. I (call) ____ Roger at nine last night, but he (be, not) ________at home. He (study) ________ at the library.3. I (hear, not) _______ the thunder during the storm last night because I (sleep) ________ .4. It was beautiful yesterday when we went for a walk in the park. The sun (shine) _______ . A cool breeze (blow) ______ .The birds (sing)_______.2. called wasn’t was studying didn’t hear was sleeping was shining was blowing were singing
14Exercise 27, p.305. My brother and sister (argue) _____ about something when I (walk) _____ into the room.6. I got a package in the mail. When I (open) _______ it, I (find) ______ a surprise.7. While Mrs. Emerson (read) ____ the little boy a story, he (fall) _____ asleep, so she (close) ____ the book and quietly (sneak) _____ out of the room.5. were arguing walked opened found was reading fell .. . closed sneaked/snuck
15Exercise 27, p.308. A: (you, hear) _______ what the teacher just said?B: No, I (listen, not) ______ . I (think) ______ about something else.9. I really enjoyed my last vacation. While it (snow) ______ in Iowa, the sun (shine) ______in Florida. While you (shovel) ______ snow in Iowa all last week, I (lie) _____on a beach in Florida.8. A: Did you hear B: wasn’t listening was thinking was snowing was shining were shoveling . . .was lying
16Exercise 37, p. 34 3. watch TV\ in his bedroom Use the given verbs and expressions of place to complete the dialogues. Use usual word order if the focus is on an activity in progress. If the focus is on the person’s location, put the expression of place between be and the -ing verb.3. watch TV\ in his bedroomA: Where was Jim when you got home?B: He was ________________________________4. watch TV \ in his bedroomA: What was Jim doing when you got home?B: He was _________________________________5. take a nap \ on the couch in the living roomA: What’s Kurt doing?B: He’s _____________________________________3. in his bedroom watching TV watching TV in his bedroom taking a nap on the couch in the living room.
17Exercise 37, p. 34 6. take a nap \ on the couch in the living room A: Where’s Kurt?B: He’s _______________________7. attend a conference \ in SingaporeA: Where’s Ms. Chang this week?B: She’s _______________________6. on the couch in the living room taking a nap attending a conference in Singapore.
18Exercise 38, p.35Correct the errors.1. Breakfast is an important meal. I ’m always eating breakfast.2. While I was working in my office yesterday, my cousin stops by to visit me.1. Breakfast is an important meal. I always eat breakfast.2. While I was working in my office yesterday, my cousin stopped by to visit me.
19Exercise 38, p.35 3. Yuki staied home because she catched a bad cold. 4. My brother is looks like our father, but I am resembling my mother.3. Yuki stayed home because she caught a bad cold.4. My brother looks like our father, but I resemble my mother.
205. Jun, are you listen to me? I am talk to you! 6. While I was surfing the internet yesterday, I was finding a really interesting Web site.5. Jun, are you listening to me? I am talking to you!6. While I was surfing the internet yesterday, I found a really interesting Web site.
217. Did you spoke English before you were come here? 8. Yesterday, while I was working at my computer, Shelley was suddenly coming into theroom. I wasn’t knowing she was there. I was concentrate hard on my work. When shesuddenly speak, I am jump. She startle me.7. Did you speak English before you came here?8. Yesterday, while I was working at my computer, Shelley suddenly came into the room. I didn’t know she was there. I was concentrating hard on my work. When she suddenly spoke, I jumped. She startled me.