Unit 2课堂练习题（一）
Lessons 7—9
Lesson 7
I.用括号中所给词语的适当形式填空。
1. Do you know the _____________ (mean) of this new word?
2. Work hard and you’ll be _____________ (success) in the future.
3. Keep ___________ (think) about it and you’ll know the answer.
4. Can you tell ____________ (exact) how we can solve this problem?
5. We should try our ___________ (good) to do everything well.
II. 根据句意用适当的介词填空。
1. You’ll succeed if you work hard ___________ everything.
2. The answer ___________ this question is very easy.
3. The students kept thinking _______ the problem for a long time, but they didn’t work it out.
4. Do you agree ___________ me, Lisa?
5. Her father left China ___________ Canada to work there.
