查人人中国名人网陈乔恩王凯舌吻戏视频:谁能帮我解释这道英语选择啊？
来源：百度文库 编辑：查人人中国名人网 时间：2024/04/19 12:09:58
He came back late, _____ which time all the guests had already left.
A. after B.by C. at D. during
这个介词为什么选择by？
A. after B.by C. at D. during
这个介词为什么选择by？
by 解释为“在……之前/到……的时候” 一般都跟完成时
例如“他会在周六之前把作业做完”
he will have finished the homework by saturday.
by 我建议你翻字典查一下这四个选项