中国石油大学 / 中石油
正确率:100%
10. -- Have we met before?
--________________.
A、I’m afraid not.
B、I didn’t see you.
C、I don’t know you.
D、How do you do?
--________________.
A、I’m afraid not.
B、I didn’t see you.
C、I don’t know you.
D、How do you do?
参考答案: