Chia các động từ trong ngoặc ra thì quá khứ đơn hoặc thì hiện tại tiếp diễn:
1.We (study)............almost every lesson in this book so far
2.We (study)............a very hard lesson the day before yesterday
3.I (had).........a little trouble with my car last week
4.The last time I (go)...........to HN was in May
5.Tom (be).............to HN twice. He loves it very much.
6.I (move)...............to HN in 2001. I (be)............ there a long time now.
7.It was so cold today that I (wear)...............a sweater at school.
Loga
Sinh Học lớp 12
