Bob said he was going to join our club but he didn’t. What a shame! He ______ his mind.
#87666
A
can’t have changed
B
mustn’t have changed
C
wouldn’t have changed
D
shouldn’t have changed
推荐题目
According to the air traffic rules, you ___ switch off your mobile phone before boarding.
#87048
A
may
B
can
C
would
D
shall
Our monitor requested that ________.
#87441
A
all the class studied more carefully the problem
B
the problem was more carefully studied
C
with great care the problem could be studied
D
all the class study the problem more carefully
—Excuse me, but I want to ride your bike to go to the book shop.—You _________ have my bike if you don’t take care of it.
#87083
A
shan’t
B
might not
C
needn’t
D
shouldn’t
Teachers required that all the students ___ their homework all alone.
#87338
A
must finish
B
would finish
C
had to finish
D
finish