问题
选择题
You must take the medicine three times ___ day.
A.the
B.one
C.every
D.a
答案
答案:D
此处考查冠词用法, 不定冠词可用来表达事物的单位或发生频率,表示每日, 每次等.
You must take the medicine three times ___ day.
A.the
B.one
C.every
D.a
答案:D
此处考查冠词用法, 不定冠词可用来表达事物的单位或发生频率,表示每日, 每次等.