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标题: prep上的语法题 求大神解答 谢谢各位 [打印本页]

作者: joanna5200    时间: 2013-6-22 13:45
标题: prep上的语法题 求大神解答 谢谢各位
Beneath the soil of the Malheur National Forest in eastern Oregon, a fungus has for centuries been slowly weaving its way through the roots of trees, to become the largest living single organism known to humans.
正确答案为:C 可是疑惑在于 这个for centuries 既有修饰前面has been slowly weaving its way through the roots of trees 的意思 也有修饰become的趋势吧??求解答啊 谢谢各位

作者: laihong    时间: 2013-6-22 13:59
这里你注意一下has been slowly weaving 这个 present perfect progressive 需要得到证实( for centuries)




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