题目
It has long been proved that air pollution contributes _ lung diseases. A.for B.in C.to
It has long been proved that air pollution contributes _ lung diseases.
A.for
B.in
C.to
题目解答
答案
句意为空气污染导致肺部疾病已被证实。
It has long been proved that air pollution contributes _ lung diseases. 中主语从句 air pollution contributes _ lung diseases.其中 contribute 做不及物动词，常与 to 搭配，意为导致，所以答案是 C。
解析
句意为空气污染导致肺部疾病已被证实。在句子 It has long been proved that air pollution contributes _ lung diseases. 中，主语从句 air pollution contributes _ lung diseases. 中 contribute 做不及物动词，常与 to 搭配，意为导致。