句型转换：(20空，1空0.5分，共10分)
It took me seven hours to make such a nice kite.
I ____________ seven hours ___________ such a nice kite.
My father finds it hard that he finishes the work on time.
My father finds _______ ______________ __________ finish the work on time.
We got those flowers without having to pay for them
We got those flowers _____________ _______ ______________.
Eight more classrooms are able to be used for different classes.
Eight more classrooms _________ ______________ ___________ different classes.
I am in charge of the radio as the oldest student member.
I am older than __________ _____________ student member and the club is _____________________ ______________.                         .
It wasn`t quiet enough in the classroom and I couldn`t hear what the teacher said.
It was ________ noisy in the classroom ____________ I couldn`t hear what the teacher said.
The office is too dirty .It requires cleaning.
The office is too dirty . It requires _______ _______ __________.