只改引号里面的话
1 he was not free
2 the boy was very naughty
3 he had left his book in my room
4 my pronunciation was better than his
5 she needed somethin to eat
6 she would call again after super
7 she was beginning to sleep better
8 they had got two first places in sports meet
9 they had been practice that song all week
10 she would be waiting for my call