问题
选择题
He stays fit because he takes _____ every day.[ ]
A. a lot of exercises
B. a lot of exercise
C. many exercises
答案
答案：B
搜题请搜索小程序“爱下问搜题”
He stays fit because he takes _____ every day.[ ]
A. a lot of exercises
B. a lot of exercise
C. many exercises
答案：B