来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/11/08 15:06:58
一道高中的英语选择题 大家帮忙解释一下
This country has high hills ,whose tops spread out into green and moist fields ____ great numbers of sheep are fed.
A to which B upon which C that D which
为什莫？
B great numbers of sheep are fed on/upon fields
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