The guards (leave) ______ the building by the time the alarm sounded.had left本题考

游客2023-09-23 61

问题 The guards (leave) ______ the building by the time the alarm sounded.

选项

答案 had left

解析本题考查动词时态。状语by the time the alarm sounded“警铃响之前”通常表示主句的动作发生在时间状语之前，所以需要使用过去完成时had left。

转载请注明原文地址:http://tihaiku.com/zcyy/3039916.html

相关试题推荐

随机试题

最新回复(0)

Isuggesthe(bring)______hisfriendsin.bring/shouldbring本题考点是虚拟语气。当suggest表