句型转换。
1. They have a baseball. (改为一般疑问句)
_________ _________ a baseball?
2. Lily has a computer. (改为否定句)
Lily _________ _________ a computer.
3. Does Mary have 4 baseballs? (作否定回答)
No,_________ _________.
4. Her father watches TV every day. (改为否定句)
Her father _________ _________ TV every day.
5. They have some balls. (改为单数句子)
_________ _________ _________ ball.
6. This story is boring. (改为同义句)
This story_________ _________.
