As is reported, it is 100 years Qinghua University was founded.A．whenB．beforeC．afterD．since 题目和参考答案——青夏教育精英家教网—

题目内容

As is reported, it is 100 years ________Qinghua University was founded.

A．when

B．before

C．after

D．since

D

试题分析：句意:正如报道的,自从清华大学成立到现在已经100年了。when 当......时候；before 在......之前； after 在......之后；since 自从。It is /has+时间段+since+sb.+did sth.自从某人做了某事已经多长时间了。故选D。

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