4. Thì hiện tại hoàn thành tiếp diễn - The present perfect cont

1. I ________ (try) to learn English for years, but I ________ (not succeed) yet.

2. Mary is ill because she ________ (work) in the garden all day.

3. She ________ (work) so hard this week that she ________ (not have) time to go to the movies.

4. That book ________ (lie) on the table for weeks. You ________ (read) it yet?

5. He ________ (not be) here since Christmas. I wonder where he ________ (live) since then.

6. Jack ________ (go) to Paris for a holiday. He never ________ (be) there.

7. You ________ (sleep) so far? I ________ (ring) the bell for the last twenty minutes.

8. He ________ (write) a novel for two years, but he ________ (not finish) it yet.

9. Mary ________ (lose) her hat and she ________ (look) for it until now.

10. She (sleep) ________ for 10 hours! You must wake her up.