12. Many a student ________ the importance of learning a foreign language.
A. have realized
B. has realized
C. have been realized
D. has been realized
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13. Her politics ________ neither conservative nor liberal.
A. is
B. are
C. was
D. has been
14. Mary is one of the girls who ________ always on time.
A. is
B. am
C. are
D. was
15. No one except two students ________ the meeting.
A. has been late for
B. have been late for
C. was late for
D. were late for
16. Nobody but Jack and Jane ___________ made great progress in the class recently.
A. have
B. has
C. had
D. has been
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