问题描述：
Pumpkins are believed to have originated in North America,______ seeds from related plants have been found dating back to 7000 B.C.
A.as B.which C.where D.whose
我觉得D也说得通啊,他去修饰pumpkins,表示前面pumpkins的物主代词为什么?
A.as B.which C.where D.whose
我觉得D也说得通啊,他去修饰pumpkins,表示前面pumpkins的物主代词为什么?
问题解答：
我来补答展开全文阅读