题目内容：

You'd better taker more____.Don't always do your _____at your desk.(exercise)

优质解答

You'd better taker more （exercise）.Don't always do your (exercises) at your desk.
你最好多去锻炼身体.别总在课桌旁写练习题.
第一个空是锻炼,不可数名词.第二个空是练习题,是可数名词复数.