1.After he (practise) practised for an hour, he (can) could play the tune perfectly.
2. By the end of the week she (read) will have read for Shakespeare plays.
3. At a quarter past ten yesterday I (wait) was waiting for the train.
4. Don't ring her up at 6.00. She (put) puts the children to bed; ring later.
5. They (work) have worked hard this summer.
6. The clock is slow. It isn't, it (stop) has stopped.
7. Do you (believe) believe all that newspappers say?
8. By midnight she (lie) had been lying unconscious for 48 hours.
9. The (walk) were walking for nearly 3 hours when they (see) saw the village in the distance.
10. They (build) were building that bridge when I (be) was here last month. They (not finish) haven't finished it yet.
11. I (pick) am picking you up at 6.30, don't forget.
12. I (share) shared a flat with him when we were students. He is always complaining about my untidiness.
13. In fifty years time we (live) lived entirely on pills.
14. A woman (come) came in with a baby, who she (say) said just (swallow) had swallowed a coin.
15. It (rain) has been raining for 4 hours and the ground is too wet to play on, so the match (be) is postponed.