These days,the relationship between teacher and pupil is not what it________be.
A.used to B.would
C.should D.could
These days,the relationship between teacher and pupil is not what it________be.
A.used to B.would
C.should D.could
A
考查情态动词。used to(用于过去经常发生的事)曾经。句意为:如今,师生关系已不是以前那样了。