He is not native; if he were, we ______ this discussion over his identity.
#87100
A
would not be having
B
are not having
C
had not had
D
will not have
推荐题目
—Peter looked tired and a little absent-minded in class. —He _____ too late.
#87899
A
may stay up
B
could stay up
C
should have stayed up
D
must have stayed up
(2014·湖南六校联考)I know it’s normal for such a thing to happen,but we________it if we’d been more careful.
#86405
A
need have avoided 
B
could have avoided
C
will have avoided 
D
had avoided
 — Mummy, I have broken my train.        一I told you so. You _______ on it.
#89285
A
mustn't have ridden
B
couldn't ride
C
shouldn't have ridden
D
needn't ride