问题
选择题
It is human activities on the earth that are to ______global warming.
A．be blamed for
B．blame for
C．take charge of
D．be responsible with
答案
答案：B
考查固定结构。Be to blame for应受责备，为……负责。所以选B。
搜题请搜索小程序“爱下问搜题”