c could have caught.d ought to catch 为什么不
A was to have B must C were to D ought to
用may/might have; must have; should/ought to have; could have
should/ ought to have
造几个英语句子1.could have done2.might have done3.should/ought to h
should ought to have done
A.must be B.may have been C.can have been D.could be ,为什么呢,
请解释ought to have gone along 为什么to 后面有have呢,
I __like to have a talk with you.Ahave to B shall C ought to
My bike is broken.I____buy one.A.could B.need C.have to D.mu
用should,ought to,have to填空.
I really ought to have konwn better.
ought to have done的意思