1. I'm not sure what I can buy for my brother. ( 改为同义句)
    I'm not sure_____ _____  _____ for my brother.
2. The young man is so a strong that he can carry the heavy box.  (改为同义句)
    The young man is strong _____  _____ carry the heavy box.
3. I really don't know what I should write to him.  (改为同义句)
    I really don't know_____  _____ _____ to him.
4. What's wrong with it? (改为同义句)
    _____  _____ _____ with it?
5. We should help him to write letters. (改为否定句)
    We _____ _____ him to write letters.

1. The bus had left by the time I got there.(改为否定句)
  The bus _______ ______by the time I got there.
2. He has already had breakfast. (改为一般疑问句)
______he had breakfast________?
3. The story was very interesting. I could never forget it. (合并为一句)
The story was ________interesting__________ I could never forget it.
4. She said, "I have read the book."(改为同义句)
She said that ______           read the book.
5. The box is so heavy that he can't carry it. (改为同义句)
  The box is __________heavy for him __________ carry.

1. All of my classmates like art. (改为否定句)
_____ _____ my classmates likes art.
2. No one knows about it. (改为反意疑问句)
No one knows about it, ______ _______?
3. I went to bed after I finished my homework. ( 改为同义句)
I ______ go to bed ______ I finished my homework.
4. If it doesn't rain tomorrow, we will go to the beach. (改为同义句)
_______ it    _____, we will go to the beach.
5. It's five months since the old man died. (改为同义句)
Five moths ______ ______ since the old man died.
6. I saw he was doing his homework just now. (改为同义句)
I saw  _____ ______ his homework just now.
7. We can't finish the work before ten. (改为被动语态)
The work  _____   _____ finished by me before ten.
8. The box is so heavy that I can't carry it. (改为同义句)
The box isn't ______ ______ for me to carry.
9. I haven't seen her since last week. (对划线部分提问)
 _____   _____ haven't you seen her?
10. Chinese is the most important subject of all. (改为同义句)
Chinese is more important than _____ _____ subject.