问题
选择题
Work hard at your lessons, and you’ll ____ your classmates.
A．catch
B．catch up
C．keep with
D．keep up with
答案
答案：D
搜题请搜索小程序“爱下问搜题”
Work hard at your lessons, and you’ll ____ your classmates.
A．catch
B．catch up
C．keep with
D．keep up with
答案：D