1)While I (was waiting/waited/have waited) for him to call up, he (had/was having/have had) a good time in the bar.
2) She(has written/wrote/was writing)this exercise yesterday at 8 o'clock.
3) He(has invited/was inviting/invited) me to the party yesterday.
4) I( passed\have passed/was passing) my exam in history to day.
5) He (read/has read/was reading) a book two days ago.
6)They(have seen/saw/were seeing) this film last week/
7) She(painted/has painded/was painting) the picture when I came.
8)I(wade/have made/was making)my report when you entered the ball.
9) They(learnt/were learning/ have learnt) the new words yesterday from three till seven.
10)It(rained/has rained/ was raining) this week.
11)She (was having/had/has had) a bath at seven o'clock last night.
12)She (was washing/washed/has washed) dishes already.
13)They (had/have had/we're having) supper when the telephone rang.
14)I (didn't meet/ haven't met/was not meeting) you for ages.
15) last summer he(has gone/was going/went) to the Caucasus.
16)she was thoughtfully looking at him while he(read/was reading/has read) a newspaper.
17)While I (swept/was sweeping/has swept) the floor,Mrs.Parker began cooking.
18)I just (had/have had/was having) a telegram to say that my poor friend is badly ill again.
19)we (sat/we're sitting/have sat) in silence for a few minutes.
20)while she(washed/was washing/has washed up),she (was hearing/heard/has heard) the doorbell,the voices.