句型转换。

1. I slept for ten hours last night. (对划线部分进行提问)

 _______ _______ did you _______ last night?

2. I learned to ride a bike when I was seven years old. (改同义句)

  I learned to ride a bike _______ _______ _______ _______ _______.

3. I finished middle school in 2000. ( 对划线部分进行提问)

  _______ did you finish middle school?

4. Class two won the second prize in the football match. (对划线部分进行提问)

  _______ won the second prize in the football match?