进气排气电磁阀:at that time 是过去时还是将来时

来源：百度文库编辑：神马品牌网时间：2024/07/18 12:28:21

at that time 是过去完成时，

过去完成时的一些时态有： by, at, before, until, by the end of , by Tuesday, at that time, eight years before, after.

多见于过去时
如：At that time, we were so close. We shared everything we had.
将来用by that time
We will have finished the project by that time.

过去时

at that time 是过去时还是将来时 Just at that time What time do you ( )home? 是arrive at还是get? 英文“Let us recall the scene at that time”说的是什么意思呢？ What is it that everyone in the world is doing at the same time? whatis it that everyone in the world is doing at the same time people hardest to convince that it`s time for retirement are children at bedtimt. shoulder seam to be reduced by 2cm要翻译成什么时态？是过去时，还是将来时？语法"听说这学期我们换英语老师了"是将来进行时,还是过去将来时? at a time是什么意思？