问题
选择题
You can use a large plastics bottle, _________ cut off, as a plot to grow flowers in.
A．with its top
B．the top of which
C．whose top
D．its top is
答案
答案：A
此题考查with的复合结构，句意：你可以用一个大的塑料瓶，把它的顶部切掉，作为一个花盆在里面种一些花。顶部被切掉应表达为with its top cut off，cut 为过去分词。所以选A。