问题描述：
The writer had lost his money.He felt upset.He must have been worried.
请问:为什么要用have been,好象不是被动语态啊
请问:为什么要用have been,好象不是被动语态啊
问题解答：
我来补答展开全文阅读
问题描述：
问题解答：
我来补答