1. At, On, In

2. time in on at

3. time month, year, etc. in on at day hour
Units of time such as week and larger units use “in.”
Parts of the day can use “in” ([the] afternoon, [the] morning) or “at” (night)(noon, daybreak, sunset, midnight, etc.).
hour

4. examples in
He saw her ___ May. on
He saw her ___ Tuesday.
He saw her ___ 2 p.m. at

5. Can you come ___ Saturday?
practice
Can you come ___ Saturday?
2. Can you come ___ December?
Answers: 1. on
2. in

6. 3. Can you come __ six o’clock?
4. I will go ___ Monday.
5. He was born ___ the 20th century.
at on in

7. 6. They go to church ___ Sundays.
7. We go to school ___ the morning.
6. on 7. in 8. at (Note: “at night” is an exception to the rule. It’s an idiom.)
8. We rest ___ night.

8. 10. I come home ___ the afternoon.
9. I go to school ___ eight.
10. I come home ___ the afternoon.
9. at 10. in

9. place in on at

10. place city, country, etc. in on at street number
Americans speak of living (or being) “on” a street, while British people use “in” a street.
“On” is used for floors in a building.
number

11. examples in
He saw her ___ Seattle. on
He saw her ___ Jay Street. at
He saw her ___ 623 Jay St.

12. 12. He lives ___ 2054 Main Street.
practice
11. He lives ___ my street.
12. He lives ___ 2054 Main Street.
11. on (American), in (British)
12. at

13. 13. Can you meet me ___ the corner?
14. The apartment is ___ the fifth floor.
13. at (most common), on (also used)
on at
15. The security man was ___ the gate.

14. 16. The desk is ___ the front.
17. When will you be ___ California?
16. in or at in in
18. They visited friends ___ Rome.

15. 19. The game started after the players were ___ the field.
20. When she came home, her father was ___ the door.
19. on at

16. 21. They go home ___ the afternoon.
mixed practice
21. They go home ___ the afternoon.
22. She saw him ___ school.
21. in at

17. 23. Everyone is happy ___ Friday.
24. The book was ___ the sidewalk.
23. on on at
25. The date changes ___ midnight.

18. 26. What do teachers do ___ summer?
27. It is nice ___ home.
26. in at (idiom) at
28. They eat lunch ___ noon every day.

19. 29. It’s cold ___ winter.
30. School ends ___ 3:15.
29. in at

20. Remember!

21. time
month, year, etc. in on at
day
hour

22. place
city, country, etc. in on at
street
number

23. in on at