根据下列句子及所给汉字注释或首字母提示，写出空缺处各单词的正确形式,并将完整答案写到II卷答题纸上。（每空只写一词）
1.They ________ (斗争) for peace.
2. They carefully ___________（观察）the behavior of deer.
3. The policemen are trained to d_________ themselves against attacks.
4. He ____________(评论) that it was an excellent film.
5. They tried to _____________（使确信）him to buy a cheaper car.
6.Disneyland is a famous t___________ park. 
7. The date of the meeting was __________（提前）by four days.
8. I don't watch the news because I find it too ___________. (令人沮丧的)
9. If a student at a college m________ in a particular subject, that subject is the main one they study.
10. It’s too expensive! We can't a________ to pay such a price.