1.There (be).......will be....ten more classrooms in our school next year.

2. Mai (be)..........has been....... sick for two days.

3. I(have)......had.......to go to the dentist's last Sunday.

4. The children (play)......play.....football in the schoolyard every Sunday morning

5. They(not tell).........didn't tell......... us about their plan last week.

6. They(build)..........built........ many bridges in the region last year.

7. Listen! I think the telephone(ring).........is ringing............

8. He (be)......has been..........absent from class since last Friday.

9. We (go)........went........for a picnic to the Cuc Phuong National Park last month.

10. "Romeo and Juliet" written by Shakespeare is the best tragedy I(ever/see)......have ever seen.........