题目内容：

What you need is more_____.You are always doing your______at your desk.
A.exercise;exercise B.exercises;exercises
C.exercises;exercise D.exercise;exercises
为什么选D?

优质解答

D
exercise 做不可数名词,表示锻炼
do exercises表示做练习,做题等
整句话的意思就是“你需要多锻炼啦.你整天都在做题.”
希望能对您有所帮助!