Mary went to the box office at lunch time, but all the tickets out. A. would sellB. had so

发布时间：2020-08-15 00:28:21

Mary went to the box office at lunch time, but all the tickets     out.
A. would sell
B. had sold
C. have sold
D. was selling

网友回答

A. would sell
(答案→)B. had sold
C. have sold
D. was selling
解析：票已售完发生在去售票处之前，故本题要用过去完成时。
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