Ответ:
Упражнение 1:
1) went, 2) 've finished, 3) was, 4) Have you been 5) 've caught, 6) was, 7) played, 8)'ve already saw, 9) has been, 10) haven't seen, 11) 've stayed, 12) went, 13) 've had, 14) 've waited
Упражнения 2:
1. have known/ knew
2. lived/ has lived
3. haven't seen/ didn't see
4. were/ have been
5. haven't watched/ didn't watch
Упражнение 3:
1. haven't been/ wanted
2. has lived
3. came back
4. wrote
5. sent
6. have just bought
Упражнение 4:
1. have lived
2. I was ill two days ago.
3. How long have you known him?
4. Susie saw a good film last night.
5. We've just finished our homework.
6. I've already written three letters.
Объясне