题目内容
Barack Obama has taken personal blame ________ the security failures which led ________ the attempt to blow up a plane on Christmas Day.
A.of; to B.for; to C.on; on D.in; on
B
![](http://thumb.zyjl.cn/images/loading.gif)
练习册系列答案
相关题目
题目内容
Barack Obama has taken personal blame ________ the security failures which led ________ the attempt to blow up a plane on Christmas Day.
A.of; to B.for; to C.on; on D.in; on
B