You can use a larger plastic bottle, is cut off, as a pot to grow flowers in.A. of which

You can use a larger plastic bottle, is cut off, as a pot to grow flowers in.
A. of which the top; with it’s top
B. whose top; with its top
C. whose top; the top of it
D. the top of which; with it’s top

A. of which the top; with it’s top(答案→)B. whose top; with its topC. whose top; the top of itD. the top of which; with it’s top解析：考查定语从句和with复合结构，第一空是定语从句，先行词是a larger plastic bottle定语从句定语从句的top需要定语，用whose top= of which the top=the top of which，所以第一个空都可以，第二空是with its top as a pot to grow flowers in 做伴随状语，补充主句。句意：你可以用一个大的塑料瓶，切掉瓶子的顶部，把它的顶部当做一个养花盆。

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