问题
选择题
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
答案
答案：B
第一空考查定语从句，先行词为a larger plastic bottle，它的上部应为whose top，第二空是with 的复合结构，with + 宾语+ 介词短语，所以选B。