Question

It is known 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
解析：

本题的意思是“人们都知道，除非你经常锻炼，否则你不会保持健康”。B项“无论何时”，C项“尽管”，D项“如果”，显然都不符合题意，此题的答案应该选择A项。