问题
单项选择题
The president claimed the terrorists should be held responsible（）the explosions that happened last month in London.
A.for
B.on
C.at
D.about
答案
参考答案：A
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The president claimed the terrorists should be held responsible（）the explosions that happened last month in London.
A.for
B.on
C.at
D.about
参考答案：A