Put the verbs in brackets in the Present Perfect tense.
1. Peter and his brother (learn) English for three years.
2. Mr. Green (play) chess since eight o'clock.
3. It (not rain) since last week.
4. We (not see) our new teacher yet.
5. I (study) very hard for this examination.
6. My uncle (work) in this factory for ten years.
7. She (see) this film before.
8. The weather (be) quite good since Christmas.
9. I (have) this bike since I was a teenager, and I still use it.
10. He (play) for the football club for several years, but it's time to leave it now.