You buy a gift, but you can if you want to.
#62926
A
must
B
mustn't
C
have to
D
don't have to
推荐题目
----Whose is that book? ----It _________ belong to Lucy. Her name is on it.
#74791
A
must
B
mustn't
C
might
D
can't
She is a quiet girl at school，but sometimes she _____ be very naughty.
#62791
A
should
B
would
C
can
D
will
You can’t imagine that a well behaved gentleman be so rude to a lady.
#63551
A
might
B
must
C
should
D
would
The room is in a terrible mess; it ________have been cleaned.
#63479
A
can’t
B
mustn’t
C
shouldn’t
D
wouldn’t
---Must we leave the classroom now?---No, you _____. You _____ leave after the bell rings.
#75608
A
mustn't; are allowed to
B
don't have to; might
C
needn't; can
D
can't; are supposed to