问题
选择题
Many people have come to realize that they should go on __________ balanced diet and make __________ room in their day for exercise.
A．a; 不填
B．the; a
C．the; the
D．不填; a
答案
答案：A
第一空填不定冠词，因为diet表示“节食”时，为可数名词; 第二空不填冠词，因为room在此指“空间”“空处”，是不可数名词。