—Who bought you the fresh flower?—It’s from my girlfriend, if you ______ know.
#62251
A
have to
B
must
C
will
D
might
推荐题目
Without gravity, we _____ walk on the ground as freely as we do now.
#63085
A
couldn’t
B
mustn’t
C
shan’t
D
needn’t
I’m feeling much better now so you ______ call the doctor.
#78333
A
couldn’t
B
wouldn’t
C
can’t
D
needn’t
Passengers _____ fasten their seat belts immediately after taking their seats. The belts should remain buckled during the flight whether or not the “fasten seat belt” light is on.
#62815
A
shall
B
might
C
need
D
would
—Must I finish the book today?—Yes, you ________, but you ________ finish it now. Have a rest.
#75918
A
do; don’t have to
B
do; mustn’t
C
must; don’t have to
D
must; mustn’t
—Why is online shopping getting more popular? —I think it _________ save a lot of time.
#74455
A
should
B
had better
C
can
D
ought to