1. With her great efforts，she has a__________ everything she wanted to do.
2. Our school is trying its best to improve our studying and working c____________.
3. Her research shows the c____________ between human beings and chimps.
4. “Have you taken part in either of my last two c_____________？” The officer asked the soldier.
5. If you want to help the poor，you can join the o________________，which usually has some such activities.
6. He is an agricultural s___________， who d__________ all his life to the research into agriculture.
7. The little boy‘s bad b____________ at the party made his parents upset.
8. It is w___________ to spend the whole day in the forest，o_________ how the chimps live.
9. He is such a great man that all of us show our r___________ to him.
10. The couple living next door always a___________ with each other about some family problems.
11. I_________by the teacher’s words， he is d____________ to study harder than before.
12. He has to work hard to earn more money， because he has a large family to s_________.
13. Last night when I got home， the clock was s_____________ ten.
14. In our school， every teach is asked to write one or two a___________ about teaching every year.
15. You‘d better e__________ to the teacher the reason for your being late， otherwise， the teacher will be angry with you.
16. The teachers in our school will have a m__________ examination once every year.
17. Everything taken into c_______________， he has done a good job this time.
18. The famous doctor has d___________ hundreds of babies during her life.
19. It is c______________ of you not to make any noise while the others are having a rest.