We can hardly believe such a young boy ______ travel around the world all by himself.
#62532
A
may
B
need
C
should
D
must
推荐题目
—_______ do you clean your room?— Every day. 
#77537
A
How long
B
How many
C
How often
D
How soon
He would rather _______ at home than ______ to the park with Jenny.
#76074
A
stay, go
B
to stay, to go
C
stays, goes
D
staying, going
(2013·浙江金华二模)A survey has shown that 40% of those killed in traffic accidents ________ if they had been wearing seat belts.
#62415
A
should have been saved
B
must have been saved
C
need have been saved
D
could have been saved