UC知道_ the police arrived, the alien left the ground A:before,B: whenC:after,选before麻烦各位回答具体点
来源：百度知道 编辑：UC知道 时间：2024/05/28 20:39:19
能不能从语法角度讲讲
当然选before 这是根据情景逻辑选的，在警察到来之前，外星人就离开了地球。 是强调警察没有看到外星人，外星人就跑了。如果你选when和after，明显就不那么合情理了。
虽然我高考600多分，可我英语实在不怎么样，我英语都是靠逻辑和语感来做题的，语法不好，你问别的还行，抱歉哈。
难道是选before么？时态不对吧 - -
难道主句不要用过去完成时么？
The police---after the criminal
The police looked for clues.
The police was very good.
Her first reaction______ the police.
police+?
The police caught him ____a car.
The thief ran away-------he saw the police.
the police carried out a through search of the building.
When the police arrived, the man for 10 minutes.
No one__this building without the permission of the police.