按括号中的要求完成改写后的句子，每个空格填一个单词。

1. The car cost him more than eighty thousand yuan.  (改为否定句)

The car__________ ________________ him more than eighty yuan.

2. Her mother is a doctor in a children's hospital. (就划线部分提问)

______________ __________________her mother ______________ in a children's hospital?

3. They don’t often hear the twins sing the song in the school.  (改写句子，句意不变)

___________of   the   twins _________________often__________________ ______________ __________________ the song in the school.

4. " Don't spend too much time on football". Mother said. (改写句子，句意不变)

Mother________________ me________________ __________________ ______________ too much time on football.

5. The boy fell behind the others though he did what he could.  (改写句子，句意不变)

The boy  ________________to___________________ __________________ ___________________the others though he _____________________ his______________