题目内容
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
【答案】
B。
【解析】考查时态的用法。Went to 发生在过去,票售完发生在went to 以前,说明要用过去完成时。所以答案为:B
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