Odpowiedź :
Odpowiedź:
1. They (have) just ( decided) that they ( would undertake) the job.
2. She (was playing) the piano when our guests ( arrived) last night.
3. I ( came) as soon as my work had finished.
4. I ( haven't left) Paris since we ( visited) Dieppe three years ago.
5. My mother (is going to come ) to stay with us next weekend.
6. Some people (have never, seen) snow before.
7. I (have lost) my keys. I cannot remember where I last ( saw) them.
8. When I last ( stayed) in Cairo, I ( rode) to the Pyramids on a camel that my friend ( had borrowed) the day before.
9. I ( will have finished) the book by my next birthday.
10. Hello! ( Are you making) a cake?
11. He (was walking) very quickly when I ( met) him yesterday.
12. Yesterday I ( bought) a new watch as my old one ( had been stolen).
13. He ( had known) her a long time before he finally ( got) married to her.
14. I ( am always having) trouble with my engine these days.
15. By the time you get back I (will have finished) all my correspondence, and then I (could) help you with yours.
16. I (have been working) very hard lately.
17. By the end of the last year he ( read) four Shakespeare plays, and by next year he ( will have read) two more. I ( haven't seen) him since last Monday, but I ( believe) he ( is writing) an essay on Hamlet at the moment.
18. After she ( had worked) at the hospital for two years, she ( decided) to give up the job.
19. This company develops toys for children, but this year they ( are preparing) software for teenagers.
Wyjaśnienie: