IV. Give the correct form of the verb in the brackets.

1. We (study)______________ a very hard lesson yesterday.

2. I (read)______________ that novel by Hemingway several times before.

3. We (study)____________________almost every lesson in this book so far.

4. My wife and I (travel) ________________ to Mexico by air last summer.

5. I (have)______________ a little trouble with my car last week.

6. What you (do)_______________ yesterday?

8. Ton never (be)__________________ in Hanoi.

9. I (see)……………………….an elephant several times.

10. She (have)……………………that dress for ten years.

11. Steven (live)_________________ in London since 1990.

12. We (leave)_______________ Singapore six months ago.

13. I never (eat)____________________ snake meat before.

13. Diana (meet)________________Simon for dinner last night.

14. You ever (be)………………………to the zoo?

15. They (live)…………………..in that house for two years.

17. The children (not finish)……………………….their homework  yet.

18. We (be)……………………………here for hours!