问题
选择题
-Do you know him well?
-Sure. 
We_____ friends since ten years ago. [ ]
A. were
B. have been
C. have become
D. have made
答案
答案：B
搜题请搜索小程序“爱下问搜题”
-Do you know him well?
-Sure. We_____ friends since ten years ago. [ ]
A. were
B. have been
C. have become
D. have made
答案：B