—You shouldn’t have shouted at your mother. It really hurt her.  —Exactly. I ________ crazy at the time. 
#62574
A
must be
B
could be
C
must have been
D
could have been
推荐题目
The room is in a terrible mess; it ________have been cleaned.
#63479
A
can’t
B
mustn’t
C
shouldn’t
D
wouldn’t
There ______ little water in the river.
#77486
A
be
B
am
C
is
D
are
As it turned out to be the most important meeting in the year, you ____ so casually. 
#62823
A
Shouldn’t dress up
B
shouldn’t have dressed up
C
needn't have dressed up
D
couldn’t dress up