Question

【题目】People who often sleep a lot but don’t do a lot of __ _ will not be very healthy.

A. exercise B. exercising

C. exersises D. to exercise

Answer 1

【答案】A

【解析】

试题分析：句意：经常睡而不多锻炼的人们不会很健康。exercise作“锻炼”讲，是不可数名词，也可作动词；作“练习”讲，是可数名词。所以选A。