Anyone can borrow books from the library ______ he keeps them clean and returns

游客2024-06-27  12

问题 Anyone can borrow books from the library ______ he keeps them clean and returns them in time.

选项 A、even if
B、so that
C、as long as
D、unless

答案 C

解析 四个连词的意思是as long as只要;unless除非;so that为了;even if即使。
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