We will have no water to drink _________ we don’t protect the earth.A. until
题型:不详难度:来源:
We will have no water to drink _________ we don’t protect the earth. A. until B. if C. unless |
答案
B |
解析
试题分析:A. until直到,B. if如果,C. unless除非,句意:如果我们不保护地球,我们将没有水喝。if引导的条件状语从句用一般现在时,主句用一般将来时。故选B。 |
举一反三
I don’t know ______ he will come tomorrow. ______ he comes , I’ll tell you.A.if ; Whether | B.whether; Whether | C.if ; That | D.if ; If |
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She will call you if she ____. A. goes to B. come back C. comes back |
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