______ you return those books to the library immediately, you will have to pay a

游客2024-10-29 42

问题 ______ you return those books to the library immediately, you will have to pay a fine.

选项 A、Until
B、If
C、Unless
D、Provided

答案 C

解析 unless作连词引导条件状语从句，相当于if not，意为“除非……；如果不……，就会……”，主句多为否定句，如：Jane won’t pass chemistry test unless she works hard．除非简努力学习，否则她就不会通过化学考试。

转载请注明原文地址:http://tihaiku.com/zcyy/3822618.html

相关试题推荐

随机试题

最新回复(0)

TheMainLibraryhasfivefloorsopentothepublic. FOURTHFL