用should,ought to,have to填空.

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/12 16:07:52

用should,ought to,have to填空.
1.He __ (come)at 4 if the plane arrives on time.
2.I didn't go shopping this morning as I ___ (do) the housework.3.She ___ (come) to see me yesterday,but she forgot.
4.You __ (ask) for permission before you left the table.
5.As they didn't understand,I ___ (explain) everything again.

1 should(ought to) come
2 had to do
3 should have come
4 shoukd have asked
5 had to explain

用should,ought to,have to填空. should/ ought to have should ought to have done 选用“should”“ought to”“had better”“have to”“must”及其否定式填空. ought to should 区别 should,ought to区别用may/might have; must have; should/ought to have; could have ought to should had better must have to 的区别 should,ought to,与have to的区别 should must ought to have to的区别 should have done 可以换成 ought to have done嘛? 用情态动词should,may,must,can,could,ought to 填空