The committee ______ over the problem among themselves for two hours.
A. has argued
B. has been arguing
C. have argued
D. have been arguing
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Most of the doctors ______ smoking is harmful to health.
A. are believed
B. had believed
C. has believed
D. believe
He is the only one of the students who ____ a winner of scholarship for 3 years.
A. is
B. are
C. have been
D. has been
Nowadays, the number of people who ____ hungry ____ been greatly reduced.
A. goes; have
B. goes; has
C. go; has
D. go; have
It’s not you but Mr. Anderson who ____ to answer for the accident.
A. are
B. were
C. is
D. was