we can see only one of the doors_____.A.are opened B.is closed C.is close D.are closed

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we can see only one of the doors_____.A.are opened B.is closed C.is close D.are closed

有 only one 强调一个 用单数. colse 不能表状态.B

应该选B吧。

B is closed 我们只能看到其中一扇门开着

B, one of the doors,门中的一个,也就是说一个门,所以谓语动词应该用单数is,表示门关着用closed