—Who for the shooting at a movie theatre in America?
—A gunman named James Eagan Holmes.
A. is blaming
B. has blamed
C. is to blame
D. is to be blamed
网友回答
A. is blaming
B. has blamed
(答案→)C. is to blame
D. is to be blamed
解析：
试题分析:句意：——美国的电影院枪击事件该归咎于谁呢？——一个叫詹姆斯·霍姆斯的持枪人。固定短语：be to blame for sth “为……负责任”，故答案选C。