Billboards, graffiti, trash, and tangled telephone wires can ______ to visual pollution.

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问题 Billboards, graffiti, trash, and tangled telephone wires can ______ to visual pollution.

选项 A、contribute
B、contribution
C、contributive
D、contributable

答案A

解析 contribute to表示“造成,起……作用”,其他各项后面接介词to都不恰当。正确答案为A。
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