题目内容：

按括号中的要求完成句子，每个空格填一个单词。

1.You are supposed to help him out. (改为否定句)

You ________  ________  supposed to help him out.

2.They are supposed to invite Mike to the birthday party next  Sunday. (就句子画线部分提问)

________  ________ they supposed to invite Mike to the birthday party?

3.They'll punish you if you break the school rules. (改写句子，句意不变)

You'll ________ ________ if you break the school rules.

4.It's been three years since we last saw our primary school classmates. (改写句子，句意不变)

We ________ ________ our primary school classmates for three years.

5.The sound of the music was becoming lower and lower and finally we couldn't hear any. (改写句子，句意不变)

The sound of the music was ________ ________ and finally we couldn't hear any.

6.The policeman was able to save the poor children if they came earlier. (改写句子，句意不变)

The poor children could ________ ________ if the policeman came earlier.