I. Put the verbs in brackets into the correct form of Present Simple, Present Continuous, Present Perfect or Present Perfect Continuous Tenses.
1. The woman who (to speak ) with my sister in the yard (to be) our neighbour who (to live) across the street.
2. Water (to boil) at 100 degrees Centigrade.
3. He is an old friend of mine. I (to know) him for ages.
4. Switch on the light. It (to get) dark.
5. Look out of the window. Some students (to hurry) to their first lecture.
6. The flight to New York (to leave) at 7.00 a.m.
7. You (to go) to Spain this summer?
8. What you (to think) of this novel?
9. What you (to think) about?
10. I (to do) my homework for two hours and I (not to finish) yet.
11. Helen (to read) this book since Monday.
12. What (to be) the title of the book you (to read)?
13. My parents (to work) for this company since 1995.
14. He (to take) English lessons for some time since last year.
15. You see, I (to do) this kind of thing for the last thirty years.
16. It (to snow) for the whole day: the garden is covered with snow.
17. Who (to break) the window?
18. You (to see) Ann lately?
19. What you (to laugh) at?
20. It’s the best book I ever (to read)