Mary ______ my letter; otherwise she would have replied before now.
#63420
A
has received
B
ought to have received
C
couldn’t have received
D
shouldn’t have received
推荐题目
My sister ______ an English teacher in our school. Now she works in America.
#77750
A
was used to be
B
used to
C
used to be
D
used to being
It is important to know about the cultural differences that cause problems.
#62570
A
must
B
dare
C
shall
D
may
(2014·郑州一检)—Who is late for class again?—________you ask？Tim，of course.
#62196
A
Can
B
Would
C
Could
D
Need
— Who’s singing in the next room? — It ______ be Mary. She ______ New York.
#75016
A
mustn’t, is in
B
must, has gone to
C
could, has been in
D
can’t, has gone to
Today is Wednesday. He _______be at home. He ______ be at school.
#77314
A
can’t, can
B
can’t, must
C
mustn’t, must
D
mustn’t, can