We all thinks that Jack for his son’s bad performance at school.
A. is to blame
B. is to be blame
C. are to be blamed
D. are be blame
网友回答
(答案→)A. is to blame
B. is to be blame
C. are to be blamed
D. are be blame
解析：考查词组：be to blame应该受责备，这个短语是主动表示被动，句意：我们都认为杰克应为他儿子在学校的不好行为受责备。选A。