题目：
----Have you worked in this company for a long time?
---- Yes, since I _________ from the college.
A．has graduated
B．graduates
C．had graduated
D．graduated
答案：
答案：D
本题考查时态。此处是省略句， 补充完整应是：I have worked in this company since I _______ from the college。所选答案的时态应与前面的现在完成时have worked相呼应。
