题目内容：

句型转换

1.My uncle has worked as a policeman since he left school. (对划线部分提问)

 _______ _______ has your uncle worked as a policeman?

2.My car didn’t work when I was driving to the airport. (保持句义基本不变)

My car _______ _______ on my way to the airport.

3.The accident happened because it rained heavily. (改成简单句)

The accident happened _______ _______ the heavy rain.

4.The large elephant weighs 8 tons. (保持句义基本不变)

The _______ of the large elephant _______ 8 tons.

5.The big fire in Australia has caused the deaths of thousands of Koalas. (保持句义基本不变)

The big fire in Australia has _______ _______ the deaths of thousands of Koalas.