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题库 / OG2018V-SC-267
Kudzu, an Asian vine that has grown rampantly in the southern United States since introducing it in the 1920s to thwart soil erosion, has overrun many houses and countless acres of roadside.
that has grown rampantly in the southern United States since introducing it in the 1920s to thwart
that has grown rampantly in the southern United States, since it was introduced in the 1920s for thwarting
that has grown rampant in the southern United States since it was introduced in the 1920s to thwart
growing rampant in the southern United States since introducing it in the 1920s for thwarting
growing rampantly in the southern United States, since it was introduced in the 1920s to thwart
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A选项：introducing有问题，因为an Asian vine 应该是被人引入，而选项用现在分词表示自己引进；
B选项：introduced to thwart, not for thwarting
D选项： introducing it 。。。 for 不合语法；
E选项：since it was introduced副词短语而E中的since 前被逗号隔开直接修饰了 has overrun many houses and countless acres of roadside.不带逗号的“since”表示时间起始点，带了逗号的“since”的功能变成了引导原因状语从句。
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