3、We hear 　　　　our ears.

2、The plane stayed there 　　　　half an hour.

1、Let’s go and have a book 　　　　　them.

12、He 　　　　(be) a doctor for the last ten years.

Before that he 　　　　(be)a teacher.

11、　　　　 　you ever 　　　　(be) to London?

Yes, I 　　　　　.I 　　　(go) there in 1989.

10、　　　 　Wang Li 　　(do) the exercise now?

No. She 　　　　　already 　　　　(do) it.

9、He usually 　　　　　　(read) English aloud in the morning.

8、John 　　　　(study)in this school since three years ago.

7、He 　　　(carry) water for Granny Wang this morning.

6、What’s the time now?

I don’t know. My watch 　　　　　(stop).