题目内容
(请给出正确答案)
[主观题]
______ you return the dictionary to the library immediately, you will be fined.
A. If
B. Until
C. Provided
D. Unless
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A. If
B. Until
C. Provided
D. Unless
A.as long as
B.as far as
C.as good as
D.as just as
A.Until
B.Unless
C.If
D.Providing
A.can’t
B.mustn’t
C.don’t need
D.don’t have to
B.in return
C.in exchange
D.in particular