He ________ to swim when he was five.
#78264
A
can
B
could
C
can be able
D
was able
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–I can’t stop smoking, doctor. --For your health, I’m afraid you________.
#75315
A
may
B
need
C
must
D
have to
—–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
We________finish it ahead of time, though it was such a tough task.
#62441
A
could
B
would
C
were able to
D
ought to
(2013·重庆高考)—What are you doing this Saturday?—I'm not sure, but I ________ go to the Rolling Stones concert.
#62394
A
must
B
would
C
should
D
might
He is ______ outstanding student from ______ university in America.
#77185
A
a; a
B
a; an
C
an; a
D
an; an