初中英语句型转换

I did my homework yesterday．My mother came back．（合并为一个句子）

I　　my homework when my mother came back．

"Are you OK？"my mother asked me．（改为间接引语）

My mother asked me　　 I　　OK．

In her spare time，Teacher Wang loves reading as well as writing．（改为同义句）

In her spare time，Teacher Wang loves　　 reading　　writing．

He goes fishing ____in the summer．（对划线部分提问）

　　Does he go fishing？

Thousands of tourists visit this park every year．（改为被动语态）

This park　　by thousands of tourists．

Susan has little time to play，　　？（完成反意疑问句）

I find it difficult to learn physics．（变成复合句）

I find　　to learn physics．

Now，more and more foreigners speak Chinese well．（变为被动语态）

Now，Chinese　　by more and more foreigners well．

It took him one and a half hours to finish the task．（变成同义句）

He　　one and a half hours　　the task．

China has a population of 1.37billion．（对划线部分提问）

　　the population of China？

She must be a doctor，　　？（完成反意疑问句）

"Are you free to come to my place this Saturday？"Aaron asked me．（改为间接引语）

Aaron asked me 　　　　 free to go to his place that Saturday．

The scientists released the picture of a black hole to the world on April 10．（改为被动语态）

The picture of a black hole 　　　　 to the world by the scientists on April 10．

I have no idea how I can operate the new washing machine．（改为简单句）

I have no idea 　　　　 operate the new washing machine．

The government is taking action to improve air quality．（保持句意不变）

The government is taking action to 　　 air quality 　　．