(英语)关于keep的几个词汇问题

问题描述:

(英语)关于keep的几个词汇问题
Failure is the mother of success.______ your courage.
A.Keep on
B.Keep up
C.Keep back
D.Keep up with

选B
keep on:继续
keep up:保持良好状态
keep back:阻止,留下
Keep up with:赶上