4. Put the verbs in brackets in the past tense or present perfect tense.
1 . We ( study) .......... a very hard lesson the day before yesterday.
2.We (study) ........... almost all lessons in this book so far.
3.We ( never / watch ) .......... that television program.
4.We (watch ) ........... an interesting program on television last night.
5. My wife and I (travel) .......... to Mexico by air last summer.
6. I (read) ......... that novel by Hemingway several times before.
7. I ( read) ......... that novel again during my last vacation.
8. I ( have ) ........... a litter trouble with my car last week.
9. However , I ( have ) ........... no trouble with my car since then.
10 . We ( live ) ............ in Ha Noi for ten years now and like it a lot.