题目内容

－We can’t achieve our dream       we keep        hard.
－I agree with you.
A．until; workB．if; workingC．unless; workingD．unless; work
C

试题分析：句意：---除非我们坚持努力工作，我们不能完成我们的梦想。---我同意你的观点。unless除非，假如不。Keep 后加doing。根据句意，故选C.
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