题目内容：

句型转换

1.He went to sleep after he finished his homework. (同义句转换)

He _____ _____ to sleep until he finished his homework.

2.There will be more trees and flowers in the city in five years. (否定句)

There______ ______more trees and flowers in the city in five years.

3.He got up early. He could catch the bus. (合并为一句)

He got up early ______ ______ he could catch the bus..

4.He reads English once a day. (对划线部分提问)

_____ _____ does he read English?

5.He is too young to go to school. (改为否定句)

He is ______ young ______ he can’t go to school.