Don’t forget to take a breath of fresh air and have some exercise each day. It will make

Don’t forget to take a breath of fresh air and have some exercise each day. It will make difference.
A. /; a
B. the; a
C. /; the
D. a; the

(答案→)A. /; aB. the; aC. /; theD. a; the解析：考查冠词用法。Fresh air是不可数名词，同时也不是特指，故不要使用冠词。第二空是固定词组make s difference起作用。句意：不要忘记呼吸新鲜空气，和每天锻炼身体。这会起很大的作用。故A正确。

我明天再问问老师，叫他解释下这个问题