问题补充：
More and more people have come to be aware of the fact that they have balanced diet and give themselves room in their daily life for necessary exercise.
A. a; /
B. the; a
C. the; the
D. /; a
答案：
(答案→)A. a; /
B. the; a
C. the; the
D. /; a
解析：句意为: 越来越多的人已经开始意识到在日常生活中应该均衡饮食并给自己进行锻炼的机会。Have/go on a balanced diet 为固定搭配，意思为“进行均衡饮食”；room此处用作不可数名词，意思为 “可能性，机会”，在本句中表泛指，不用冠词。
