问问题哦~~菜鸟的英语问题~~

来源：百度知道 编辑：UC知道 时间：2024/06/06 21:07:45
1.To travel from England to Scotland you ______a passport.
为什么这里要填don't need而不是needn't?
2.There is someone knocking at the door.Who ___it be?
为什么填can不填may？
3.Why hasn't Mary turned up?I think the train___。
为什么填might have been delayed而不是might be delayed
4.Mr.Li___be in Beijing because I saw him in town only a few minutes ago.
为什么是can't不是isn't able to?
5.It't time that you_____home and I 'd rather you_____again tomorrow.
为什么是went，came而不是go，are coming？

1。need词性分析
2。may 个人主观推测，can 客观
3。过去完成式嘛。。过去已经发生并完成咯
4。怎么能出现俩BE动词叻在主语后面
5。固定句型的啦，It's time that sb. done smth ，这里的动词需要用过去式，这个是特殊的，记着

3 根据前面的Why hasn't Mary turned up?来推测的。所以用might have
4 be able to表示能力而can't表示不可能。符合题意了。
5 这个是虚拟语气。