X. Chia các động từ trong ngoặc ra thì simple past hoặc present perfect
1. We (study)......... .a very interesting lesson the day before yesterday.
2. I (study)......
..almost every lesson in this book so far.
3. We (watch).........
4. We (watch).
5. My wife and I......
6. My husband and I (travel)..
7. I (read).....
8. I (read)....
9. I (have)..
10. However, I (have).
....that television program.
an interesting program on television last night.
.(travel) by air many times in the past
to Quy Nhon by plane last summer
.....that novel by Shakespeare several times before.
.that story again during my last summer holiday.
a little trouble with my car last week.
no trouble with my bike since then.
or the present perfect tense.