I read your letter when the bell rang.A. haveB. was about toC. wanted toD. should have

发布时间：2020-08-17 12:07:47

I      read your letter when the bell rang.
A. have
B. was about to
C. wanted to
D. should have

网友回答

A. have
(答案→)B. was about to
C. wanted to
D. should have
解析：be about to do 表示过去即将发生的动作。
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