__________ you return those books to the library immediately, you will have to pay a fine.
A Until
B If
C Unless
D Provided
相关试题
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__________ you return those books to the library immediately, you will have to pay a fine.
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______ you return the dictionary to the library immediately, you will be fined.
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You have to pay to have the books printed, ______ can be quiet expensive.
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_the price of the product, you will have to pay for shipping.(5.0)(5.0)(5.0)
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________the price of the product, you will have to pay for shipping. （2.0）