标题: 请教大家gmat中关于being done 形式的疑问,期待NN 啊 [打印本页] 作者: yang3263388 时间: 2011-9-26 12:03 标题: 请教大家gmat中关于being done 形式的疑问,期待NN 啊 今天由prep 1-103 的正确答案 “ Simply being genetically engineered does not make a plant any more likely to become an invasive or persistent weed,according to a decade-long study published in the journal Nature ” 联想到以下疑问： 1. being done 可以做句子的主语，那同样为动名词形式的 having done / having been done 可以做句子的主语吗？