Не (finish) the first part of his book and now he (write) the second. He (work) at his book for two years.
17. She (have) a bath at seven o'clock last night.
18. Linda also (answer) telephone calls, sometimes she (show) visitors around the factory.
19. The library (close) by the time I (get) there.
20. She (look) at him while he (read) a newspaper.
21. Hurry up, Jane! We all (wait) for you.
22. The scientists (carry) out many experiments before they (achieve) satisfactory results.
1. began
2. Did you see? He had already left
3. will write
4. left. haven't been saw
5. taking. he has took
6. came, doing
7. cooked, comes
8. will see
9.will preparing
10. Had he did? He did
11. are working, are making
12.goes
13. talk, runs
14. wrote
15. have learned
16. finished, is writing. had worked
17. had
18.answers, shows
19. closes, will getting
20. looked, reads
21. are waiting
22.carried, will achieve