A-A+
Students cannot leave the library to return to
问题详情
Students cannot leave the library to return to the classroom or to go to any other area in the building without______from the librarian.
A．permit
B．permitted
C．permission
D．permitting
参考答案
正确答案：C
解析：空格内应填人一个名词，作介词without的宾语成分。选项中名词有(A)permit和(C)permission两个。permit表示“认证书，许可证”的意思，permission表示“允许，同意”的意思。从句意上可以判断出(C)permission是正确答案。
