Theworseningofglobal&n

发布时间:2020-07-12 07:17:13

The worsening of global warming, _____human activities are to blame, has led to frequently extreme weather.












A.by which











B.for which










C.that










D.what

网友回答

B解析blame后面接宾语需要加介词for,故选











B.
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