问题 选择题

—You seem to have known Dr. Ken for a long time.

—That’s true. ________ he joined our club years ago.

A.Since

B.Until

C.When

D.If

答案

答案:A

连词辨析。A. 自从……以来   B.直到 C. 既然,当……时 D. 是否,如果。句意:你好像认识肯博士很久了。——是的,自从他几年前加入我们俱乐部以来。故选A。

单项选择题
单项选择题