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。