What do you usually do when you are together

1)while i was waiting for him to call up, he was having a good time in the bar.

2) she was writing this exercise yesterday at 8 o'clock.

3) he invited me to the party yesterday.

4) i have passed my exam in history today.

5) he read a book two days ago.

6)they saw this film last week.

7) she was painting the picture when i came.

8)i was makingmy report when you entered the ball.

9) they were learning the new words yesterday from three till seven.

10)it has rained this week.

1.in

2.at

3.at

4. at

5       in

6     in

7       in

8         at

9.   in