-Do you know him well ? -Sure. We ______
问题:
-Do you know him well ?
- Sure. We ______ friends since ten years ago.[ ]
A. were
B. have been
C. have become
D. have made
-Do you know him well ?
- Sure. We ______ friends since ten years ago.[ ]
A. were
B. have been
C. have become
D. have made