He used to be a successful businessman, but drug ____ his ruin.
A．a(chǎn)ttended toB．contributed to C．resulted fromD．devoted to
B

試題分析：考查詞組：A. attended to照顧，B. contributed to導(dǎo)致，C. resulted from源于，D. devoted to致力于，句意：他過去是個成功的商人，但是毒品導(dǎo)致他的毀滅。選B。
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