He is ______ outstanding student from ______ university in America. 
#77185
A
a; a
B
a; an
C
an; a
D
an; an
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_____ people in the world are sending are receiving e-mails every day.
#77031
A
Million of
B
Many millions of
C
Several millions’
D
Several millions
Li Lei knows two foreign languages. He can speak _______ English______ French.
#76947
A
either…or
B
neither…nor
C
both…and
D
so…that
—Must I finish the book today?—Yes, you ________, but you ________ finish it now. Have a rest.
#75918
A
do; don’t have to
B
do; mustn’t
C
must; don’t have to
D
must; mustn’t
-Is that Mary?-No, it _______be her. She has gone to Tokyo. 
#75898
A
can’t
B
may
C
needn’t
D
mustn’t