早教吧 育儿知识 作业答案 考试题库 百科 知识分享
早教吧考试题库频道 --> 学历类考试 -->高中 -->

Mary went to the box office at lunch time, but all the tickets ______ out.A. would sel

题目

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

参考答案
正确答案:B