Question

— I’m on ______ diet to lose weight.
— You should take ______ exercise as often as you can.

A．\; \

B．\; a

C．a; \

D．a; a

Answer 1

C

试题分析：考查冠词的习惯用法。句意：-为了瘦身，我正在节食。-你应该尽可能经常地锻炼。不定冠词在固定短语中的用法：on a diet意为“节食”；零冠词在固定短语中的用法take exercise意为“锻炼”。