问题补充:
It is not I but Tom and his wife that for the car accident.
A. am to blame
B. are to blame
C. am to be blamed
D. are to be blamed
答案:
A. am to blame
(答案→)B. are to blame
C. am to be blamed
D. are to be blamed
解析:句意:不是我而是汤姆和他的妻子应为这次车祸负责。that for the car accident.是定语从句,谓语动词和先行词保持一致,先行词是Tom and his wife,是复数,所以系动词用are;且be to blame是应受责备,应对……负责。所以选B。