问题
选择题
_______can help you keep healthy.
A．Do exercise
B．Doing exercise
C．Do exercises
D．Doing exercises
答案
答案：B
题目分析：句意：锻炼可以帮助你保持健康。动名词短语做主语，exercise为不可数名词意为“锻炼，运动”；故选B。
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_______can help you keep healthy.
A．Do exercise
B．Doing exercise
C．Do exercises
D．Doing exercises
答案：B
题目分析：句意：锻炼可以帮助你保持健康。动名词短语做主语，exercise为不可数名词意为“锻炼，运动”；故选B。