Barack Obama has taken personal blame the security failures which led the attempt to blo

发布时间：2020-08-16 06:41:13

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

网友回答

A. of; to
(答案→)B. for; to
C. on; on
D. in; on
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