xiaoming0824
幼苗
共回答了19个问题采纳率:100% 举报
must
You must do the garden.
You must kill the playful child.
You must have a good time today.
I must do the homework.
I mustn't hand over the keys to strangers.
I must hand over the homework on time to the teacher.
have to
I have to finish it at once.
I had to go at once.
As students we have to be respectful to our teachers.
I had to leave the dinning room on time.
ought to
We ought to study hard.
Ought We to study hard?
1年前
1