英语辨析:关于keep的短语

题目

英语辨析:关于keep的短语
I'm putting on weight,the doctor has warned me to_____ sugar
a.keep up
b.keep back
c.keep off
d.keep away
请问选哪个?为什么?

答案

选C
keep off...避开……,其基本意思和keep away from...差不多.D keep away 加上from也可以
keep up 保持
keep back 隐瞒