用should,ought to或have to的正确形式填空

来源：学生作业帮编辑：搜狗做题网作业帮分类：英语作业时间：2024/08/18 01:13:50

He ________ (come) at 4 o'clock if the plane arrives on time.

I didn't go shopping this morning as I __________ (do) the housework

She ________ (come) to see me yesterday,but she forgot.

You _________ (ask) for permission before you left the table.

As they didn't understand,I _________(explain) everything again

1.should come 2.had to do 3.should have come 4 should have asked 5 had to explain

用should,ought to,have to填空. should/ ought to have should ought to have done 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的区别用to,be或to have的适当形式填空选用“should”“ought to”“had better”“have to”“must”及其否定式填空. 用to have或there be的适当形式填空用have to的适当形式或must填空 ought to should 区别 should,ought to区别