三、
1. We don’t come from China.
2. We don’t like the mask.
3. He doesn’t like the violin.
4. Do not have any bread, Tom.
5. Please do not open your books
6. I don’t like Chinese、Math、Art and PE
7. She doesn’t have a shower in the morning.
8. She didn’t do a lot of work in the company last night.
9. They didn’t have a lot of fun in past ten years.
10. I didn’t use to play the piano.
四、
1. isn't 2. doesn't tell 3. doesn't 4. doesn't have 5. don't do 6. mustn't 7. aren't having 8. doesn't have
五、1. 添加do 2. some 改成any 3. are改成is 4. don't 改为doesn't
六、1. I like playing football.
2. There aren't any pictures on the wall.
3. We are waiting for the bus.
4. How much is the shirt?

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