题目内容：

按要求完成下列各题

1.I think you should go home at once.(改为否定句)

I________ ________ you should go home at once.

2.Come to the evening party. You have time. (用if连成一句话)

________ you________ ________， come to the evening party.

3.Keep healthy, and you must give up smoking. (改为同义句)

________ you want to keep healthy, ________ ________ smoking.

4.If your sick dog is not treated, it can't live any longer.(改为同义句)

Your sick dog must be treated, ________ it would die.

5.it, go, will, I, if, is, there, sunny, tomorrow(连词成句)

________________________________________________________________________.