题目内容：

句型转换。

1.There will be more pollution in the future.(改为否定句)

There _________ __________ be more pollution in the future.

2.The actors went to the beach yesterday. (就画线部分提问)

_________ did the actors _________ yesterday

3.He went to bed after his mother came back. (改写句子，句意不变)

He _________go to bed _________his mother came back.

4.The ice on the lake was so thin that people couldn't skate on it. (改写句子，句意不变)

The ice on the lake was __________ thin for people __________ skate on .

5.I hope I can take a trip to Beijing this winter. (改写句子，句意不变)

I __________ __________ to taking a trip to Beijing this winter.