英语选择题The boy read a detective book ,so he the library yesterday.The boy read a detective book ,so he the library yesterday.A.can't be in B.can't have been to C.must have been to D.must have been in 我选了C，不对 顺便说说have been to have been in 的区别
问题描述：
英语选择题The boy read a detective book ,so he the library yesterday.
The boy read a detective book ,so he the library yesterday.
A.can't be in B.can't have been to C.must have been to D.must have been in
我选了C，不对 顺便说说have been to have been in 的区别
答
D 那个男孩昨天读侦探书的，所以说他昨天不可能去了图书馆。
答
D
must have been to 指人不在这里
他不可能今天还在图书馆,所以选D ,表示他昨天在图书馆里
答
D have been to 只表示去过图书馆但并不一定在那看书,而have been in 表示在图书馆里呆过（看书）
答
C，这个男孩看了侦探书，所以猜测时用肯定，说他昨天一定去了图书馆。而D用in是说在图书馆里，他不可能一天都在那，所以用to，表示去过就好了。