新概念英语2练习册14课的题

新概念英语2练习册14课的题
连接各组句子,将括号中的词置于句首.
1、I returned to my hotel.My friends had already left.（When）
2、They finished lunch.Then they went back to work.(As soon as)
3、I answered his telephone call.Then I wrote him a letter.(After)
4、He finished reading his book.Then we spoke to him.(We didn't)
5、Someone spoke to her.She had been in the offic for days before that happened.(She)
6、The pilot checked everything.Then he took off.(When)

When I returned to my hotel,my friends had already left.
As soon as they finished lunch,they went back to work.
After I had answered his telephone call. I wrote him a letter.
We didn't speak to him until he finished reading his book.
She had been in the offic for days before anyone spoke to her.
When the pilot had checked everything,he took off.
练习册后没答案吗