We can do a lot to stay healthy. , we should eat a balanced(平衡的) diet.A. At a timeB. In fa

We can do a lot to stay healthy. , we should eat a balanced(平衡的) diet.
A. At a time
B. In fact
C. First of all
D. All together

A. At a timeB. In fact(答案→)C. First of allD. All together解析：词语辨析。句意：为了保持健康我们做了很多。首先，我们应该保持饮食平衡。根据句意可知，C符合题意。

和我的回答一样，看来我也对了