1、I went to school yesterday.我昨天去学校。
2、I bought a bag the day before yesterday.我前天买的包。
3、I dated a good friend the day before yesterday.我前天约的好友。
4、.I finished my homework this morning.我在早晨就已经完成了作业。
5、The light went out, and the room was plunged into darkness.灯熄了，屋里陷入一片漆黑。
see的过去式？
