Răspuns:
1. A. look... B. 've solved... 've been working
2. A. does Jane look B. hasn't heard
3. A. have you been waiting B. 've been waiting
4. A. 's been trying B. 's made
5. A. Have you finished B. haven't finished... am still working
6. B. 've been washing... haven't finished
7. A. Have you ever visited B. 've seen
8. A. 've just seen B. knows... 's been growing... has even tried... look
9. A. Have you seen B. 've taken
10. A. are you doing B. am tasting... tastes
Explicație:
Verb tenses
