Unit 9课堂练习题（二）
Lessons 52—54
Lesson 52
I.用括号中所给词语的适当形式填空。
1. How many ______________ (different) have you found between the two pictures?
2. Any _____________ (difficult) can be overcame by us.
3. All the parents want their children to get good _____________ (educate) at school.
4. I think this _____________ (suggest) is much better than that one.
5. Computers can’t _____________ (complete) take the place of the humans.
II. 根据句意用适当的介词填空。
1. Listen! Who is knocking ___________ the door?
2. Your homework should be handed _____________ after class.
3. We always regard him ___________ our best friend.
4. Tony is busy ___________ his work all these days.
5. The teacher asked me to pay attention ___________ my spelling.
