We are going to have the sports meeting ________ it ________ tomorrow.

[  ]

A.if; rains

B.unless; will rain

C.unless; rains

D.when; will rain

答案:C
解析:

选C。unless是“除非”的意思,相当于if not。当主句的谓语是一般将来时的时候,由unless引导的状语从句要用一般现在时。


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