Complete the sentences with the Present Perfect Continuous or Present Perfect form of the werbs in brackets.

1. We (know) each other since we were at school.
2. They (play) tennis every Sunday for years.
3. I (not play) tennis.
4. You don't understand because you (not listen).
5. How long you (learn) English?
6. You (read) the book yet?
7. I (eat) dinner, so let's go out.
8. I (read)the book you recommended but I'm not finished).
9. She (finish) her work already.