Mr. Green stood up in defense of the 16-year-old boy, saying that he was not the one .
A. blamed
B. blaming
C. to blame
D. to be blamed
网友回答
A. blamed
B. blaming
(答案→)C. to blame
D. to be blamed
解析：选择C。blame 是及物动词，一般用blame sb (for...).
但，在用法be to blame中表示被动意义：应该受责备。
He is to blame .
blame 一般不用被动.
He is to blame for the accident.他应在事故中负责.