( ) can keep people healthy and away from the H1NI flu 请说明理由!
问题描述:
( ) can keep people healthy and away from the H1NI flu 请说明理由!
A.Do exercise B.Take exercise C.Taking exercise D.Doing exercise
答
D
动名词做主语.
do exercise是习惯用语,锻炼的意思.