--Who has opened the door?  ---I think it __ be Lin Tao. He’s always the first to get here.
#88947
A
is able to
B
can't
C
must
D
mustn’t
推荐题目
She demanded that he _____ the books he borrowed from her. 
#87165
A
should return
B
would return
C
returned
D
were to return
 You didn't let me drive. If we     in turn, you      so tired. 
#86677
A
drove;didn't get
B
drove;wouldn't get
C
had driven;wouldn't have got
D
were driving;wouldn't get
. He __________ full marks, but he was so careless as to make a spelling mistake.
#88166
A
must have gained
B
can have gained
C
could have gained
D
must gain