It is known to all that you exercise regularly, you won’t keep good health. A. u
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It is known to all that _____ you exercise regularly, you won’t keepgood health.
A. unless B. whenever C.although D. if
试题答案
【答案】
A
【详解】本题考测连词的辨析。unless 是如果不，除非的意思。只有它句意才完整。主语从句的意思是 “除非你经常锻炼，不然的话，你就不能保持健康状态。”