Ответ:
1. have you been watching
2. has been riding
3. haven't been playing
4. have been living
5. - has he been studying
- has been studying
6. haven't been listening
7. have they been cooking
8. have been drawing
9. hasn't been drinking
10. haven't been walking
Объяснение:
нужно поставить глаголы в present perfect continuous.
формулы ppc:
(+) subject + have/has been + Ving.
(-) subject + have/has not been + Ving.
(?) have/has + subject + been + Ving?