问题描述：
Sam was sure that the wallet must have been found by one of the villagers...
请问been和found冲突吗?怎么有两个谓语动词?
请问been和found冲突吗?怎么有两个谓语动词?
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