—I think the man over there must be Bob. -- It_______ be him. He has______ to Australia. 
#78073
A
can’t, gone
B
can’t, been
C
may not, been
D
mustn’t, gone
推荐题目
---- Did you pass the driving test? ---- No. I ______ it, but I had little time practicing.
#63236
A
could have passed
B
must have passed
C
can’t have passed
D
shouldn’t have passed
I__________through that bitter period without your generous help.     
#63620
A
couldn’t have gone
B
didn’t go
C
wouldn’t go
D
hadn’t gone