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.
