1·How often do you take exercise?
你多久锻炼一次?
2·Kids should take exercise.
孩子们应该锻炼身体。
3·I know Mark doesn't take exercise.
我知道马克不锻炼。
4·He gets up early to take exercise.
他常常早起锻炼。
5·I take exercise after class every day.
我每天下课后锻炼身体。