we choose healthy food for our main meals, we probably still need to exercise now and then.
A. Unless
B. As though
C. Until
D. Even if
网友回答
A. Unless
B. As though
C. Until
(答案→)D. Even if
解析:本题考查连词的用法。unless“除非,如果不”;as though“好像,似乎”;until“直到”;even if“即使,纵然”)