动词填空。用括号内所给动词的适当形式填空。
1. I'll tell our monitor the good news as soon as he __________ (come) back to school.
2. It was a pity that you ___________ (not attend) the meeting last Friday afternoon.
3. We should think about what we can do __________ (keep) animals and plants from becoming endangered.
4. On May 12, 2008, sichuan ___________ (hit) by a strong earthquake which killed many people and distroyed
many buildings.
5. Playing computer games is delightful, but (spend) too much time on it may do harm.
6. Today, to hold the Olympic Games ___________ (consider) as a rich prize for a country.
7. Many changes ___________ (take) place in our daily life since the invention of the computer.
8. The policeman said that he ___________ (see) a Young Pioneer help an old woman cross the road the day
before.
9. Our Maths teacher ___________ (prepare) the new lesson with other teachers in the office from 2 to 4
yesterday afternoon.
10. The first step towards ___________ (protect) the environment is to try to throw away less rubbish.
