题目内容：

句型转换

1.To go out with strangers is dangerous.(改为同义句)

________ ________to go out with strangers.

2.My brother wants to learn some table manners in England.(对画线部分提问)

________ ________your brother want to learn?

3.He hopes that he will be an astronaut in the future.(改为同义句)

He ________ ________be an astronaut in the future.

4.If there were no water, fish couldn't live.(改为同义句)

Fish couldn't_________ ________ water.

5.They used to be very outgoing.(改为一般疑问句)

________they ________ to be very outgoing?