1主语+was/were doing when...2主语+was/were about to do when...3主

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/04/29 09:28:22

1主语+was/were doing when...2主语+was/were about to do when...3主语+had/hadn't done for some time
各举一个例子吧

1.主语+was/were doing when...
（过去） .发生时主语正在做某事
I was doing my homework when she walked in.她进来的时候我正在做作业.
2.主语+was/were about to do when...
（过去).发生时主语将要做某事
I was about to do my homework when she walked in.她进来的时候我正要做作业.
3.主语+had/hadn't done for some time
（迄今）.主语做/没有做某事已经有一段时间了
I had/hadn't played computer games for three months.我玩/不玩电脑游戏已经三个月了.

1主语+was/were doing when...2主语+was/were about to do when...3主帮忙用was/were doing .when ; be about to do.when;had just done. had juest done..when ,were/was doing..when,be about to do .. 特殊疑问词+was/were+主语+doing while sb was/were doing与when sb was/were doing What were you doing yesterday afternoon when I was watching what was your grandparents used to do when they were young 的过去进行时.主语+was/were+vimp[at.yesterday]1陈述句2一般疑问句3肯定回答/否定回答. last year ,when I----in london.1be 2am 3was 4were was/were going to was/were to was/were about to 的区别 When was the telephone invented,do you konw?为什么这里用was不是were? be动词的一般过去时否定:主语+was/were+_______+其他