考试
2021-02-05 14:19:14

[单选] They happened to_________

题目描述

问题: [单选] They happened to__________ for Tianjin when we got there. A . leaveB . have leftC . leavingD . had left

答案解析

happen to后接动词原形,所以先排除C、D,而不定式表示的动作发生于过去,故选B。

B

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