sony a7 拍摄视频教程:He ________the display for several minutes before re-entering his shop.

来源：百度文库编辑：神马品牌网时间：2024/05/11 04:54:20

为什么是gazed at,不是用完成时才对的吗???

我也同楼主一样观点
Before 在……之前
主句发生在从句之前，从句发生在主句之后。
主句用过去完成时。

当句子中有before或after之类的表示时间先后的词时,可以不用完成时,但是用了也没有错.

如果是完成式，应为：
He __had been gazing at______the display for several minutes before re-entering his shop.

He ________the display for several minutes before re-entering his shop. We keep the doctor'stelephone number by the phone ________the air fare HE是什么意思？ he是什么意思 HE是什么意思 HE是什么意思？ he drew whatever he saw Thanks for ________the ruler from the ．．．．．．．．．．． he left her everything he possessed If he _____busy tomorrow, he will come.