问题补充:
It was Tom as well as his friends that for the serious accident.
A. was to be blamed
B. were to blame
C. was blaming
D. was to blame
答案:
A. was to be blamed
B. were to blame
C. was blaming
(答案→)D. was to blame
解析:考查主谓一致。be to blame应该受到责备。as well as连接两个主语,谓语动词与前一个主动保持一致。句意:是汤姆和他的朋友对这起严重的事故负责。