问题补充：
They are the who Wuhan University and now are playing an important part in our factory.
A. graduate; graduated
B. graduates; graduated
C. graduates; graduated from
D. graduate; graduated from
答案：
A. graduate; graduated
B. graduates; graduated
(答案→)C. graduates; graduated from
D. graduate; graduated from
解析： 考察词义辨析。Graduate可以作为名词，表示毕业生；也可以作为动词，表示毕业；固定搭配graduate from…从…毕业；句义：他们是两个从武汉大学毕业的大学毕业生，现在在我们工厂里起了很重要的作用。故C正确。
