—–I think the man over there must be Tom.—–It _____ be him. He has ______ to America.
#75468
A
can’t;gone
B
can’t;been
C
may not;been
D
mustn’t;gone
推荐题目
I have trouble ________ the new words. 
#75119
A
memorize
B
to memorize
C
memorizing
D
memorized
-__________ can you finish your homework, Ben?- In thirty minutes. 
#77165
A
How far
B
How soon
C
How long
D
How often
Tom ____his homework yesterday, because he was in hospital all day.
#63327
A
can’t finish
B
couldn’t finish
C
couldn’t have finished
D
mustn’t finish