1. 昨天他不得不早起床赶公共汽车。    
He          get up early to catch the bus yesterday.  
2. 现在我必须做作业。
I          do my homework now.
3. I had to get up early yesterday.(改为否定句)
I               to get up early yesterday.  
4. She has to clean the room every day. (改为否定句)
She               to clean the room every day.  
5. I can dance and sing. (改为否定句)
I        dance        sing.  
6. The students can eat in the hallway.(改为一般疑问句)    
       the students        in the hallway？

1. How's the weather today? (同义句转换)
    ________ the weather ________ today?
2. He is doing sports in the park. (对画线部分提问)
    ________ ________ he ________ in the park?
3. Tom bought a book about history last week. (否定句)
    Tom ________ ________ a book about history last week.
4. Sally has to clean the room every day. (改为一般疑问句)
   ________ Sally ________ to clean the room every day?
5. The old man doesn't want to do anything. (同义句转换)
    The old man ________ to do ________.

1. Remember to clean the room. (改为同义句)
    _______ _______ to clean the room.
2. The red dress is 100 dollars, and that white one is 90 dollars. (同义句)
   The white dress is _______ than that red one.
3. Jim has to help his mother do the housework. (改为否定句)
    Jim _______ _______ to help his mother do the housework.
4. Lin Tao often does the dishes on Sunday. (用next Sunday改写)
    Lin Tao _______ _______ the dishes next Sunday.
5.They did their homework last night. (改为否定句)
   They _______ _______ their homework last night.
6. He went camping last week. (对画线部分提问)
   _______ _______ he _______ camping?
7. We need one teaspoon of honey. (对画线部分提问)
    How _______ _______ do you need?
8. The boys are going to take part in the speech contest. (对画线部分提问)
    _______ _______the boys going _______ _______.
9. The talented boy went to primary school when he was only four. (同义句)
    The talented boy went to primary school _______ _______ _______ _______ four.
10. He is so young that he can't go to school. (同义句)
     He is _______ young _______ go to school.