The boy, rather than his friends, for the accident.
A. are responsible
B. were responsible
C. be responsible
D. is responsible
网友回答
A. are responsible
B. were responsible
C. be responsible
(答案→)D. is responsible
解析：主语后面跟有rather than引起的短语, 谓语和主语一致。主语the boy是单数，故选D。