—How do you like your English teacher?
—He is great. We friends since three years ago.
- A.were
- B.have made
- C.have been
- D.have become
答案
正确答案:C
知识点:动词时态:现在完成时

由答句中的since three years ago可知,句子用现在完成时态,且动词用延续性动词,故选C。

略
