Jack _______ swim when he was five years old.
#78233
A
can
B
could
C
may
D
must
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—Do you think we are going the right way to the Forbidden City?—Sorry, I’m not sure．But it _______ be．
#63032
A
might
B
will
C
must
D
can
Don't blame such a small boy any more. Even the wisest___ make a mistake sometimes.
#63414
A
must
B
can
C
should
D
shall
—I saw Kate in the park this morning.—It ______ her. She moved to Canada last week.
#75521
A
can be
B
must be
C
can’t be
D
mustn’t be