Question

It is know to all that ________ you exercise regularly, you won't keep good health．

[　　]

A．unless

B．whenever

C．although

D．if

Answer 1

答案：A
提示：

　　從句意上看，只有A正確。

　　句意：“眾所周知的是：除非你有規律地鍛煉，否則你不會保持身體健康。”