the number of articles published on smoking ______ amazing.
A. is
B. are
C. were
D. have been
查看答案
The majority of doctors ______ smoking is harmful to health.
A. are believed
B. had believed
C. has believed
D. believe
The majority of the damage ______ easy to repair.
A. is
B. are
C. were
D. be
Four-fifths of the crop ______.
A. are ruined
B. was ruined
C. were ruined
D. have been ruined
Three-fourths of the buildings ______.
A. was destroyed
B. is destroyed
C. were destroyed
D. has been destroyed
微信支付 
支付宝支付