问题
选择题
In addition to keeping on taking ________ exercise, Alan is also going on ____ diet to lose weight.
A．an; a
B．an; /
C．/; /
D．/; a
答案
D
题目分析：考查冠词。句意 除了继续锻炼之外，安拉了也在进行节食减肥。Take exercise 锻炼 固定短语。Go on a diet 节食。所以选D项。
考点 : 考查冠词