题目内容
It is known to all that ________ you exercise regularly, you won't keep good health．
[ ]
A．unless
B．whenever
C．although
D．if
答案：A
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名校通行证有效作业系列答案题目内容
It is known to all that ________ you exercise regularly, you won't keep good health．
A．unless
B．whenever
C．although
D．if
名校通行证有效作业系列答案