II. Put the verbs in the brackets in Present Perfect or Present Perfect Continuous.
1. have you been doing
2. have eaten
3. have written
4. has been cooking
5. have seen
6. Thiếu đề
7. have known
8. have been revising
9. Have you changed
10. have finished
* Present Perfect: S + have/has + V(pp).
* Present Perfect Continuous: S + have/has + been + V-ing.