问题
选择题
Professor Tang didn’t give us a speech today．It was he had a traffic accident on the way to school．
A．that
B．when
C．why
D．because
答案
答案：D
考查连词的用法。句意：唐教授今天没有给我们做演讲，那是因为她在去学校的路上发生了交通事故。所以选D。
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