高三英语单选 I___to shanghai on business last week,but i was ill and Lily went instead of me.

题目

高三英语单选 I___to shanghai on business last week,but i was ill and Lily went instead of me.
A.went B.was about to C.was to go D.had gone
B和C有什么区别呢

答案

C.考察Be动词词组的用法.be to do 打算要去做的意思.
be about to do 即将做某事（马上就要做,正要做）,表示的时间概念要比be to do 急得多.
be to do = will do,be going to do

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