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问题: 语法题

This morning I ( )on time. But unfortunately there was a car accident and the traffic and the traffic was blocked for half an hour.

A.was to have come B.was to come

C.must have come D.had come

解答:

This morning I (A )on time. But unfortunately there was a car accident and the traffic and the traffic was blocked for half an hour.
A.was to have come B.was to come
C.must have come D.had come
be to have done本应该...做成某事 相当于should have done.后文那么长全是解释没有做成某事的原因。很显然选A。
was to come表示将要做成某事,
C表示一定做成了某事。
D表示做成了某事,与句意不符合。

参考文献:http://blog.sina.com.cn/calendula28