(2014·山东省实验中学一模)You________get an all­expense­paid vacation to Australia if you can answer all the questions.
#62193
A
must 
B
can
C
shall 
D
may
推荐题目
Sir, you ________ take this seat. It’s just for the old.
#63644
A
oughtn’t to
B
can’t
C
won’t
D
needn’t
—Everyone in my class passed the exam.—Oh, really? It ________ difficult.
#62802
A
can’t have been
B
needn’t have been
C
must be
D
mightn’t be
______green or_______in a light green room________good for us.
#77330
A
Wear;sleep;is
B
Wearing;sleeping;are
C
Wear;sleep;are
D
Wearing;sleeping;is