Question

You can use a large plastic bottle, _____ cut off, as a pot to grow young plants in.

  A. the top is        B. the top of which

  C. whose top       D. with its top

Answer 1

D

解析:

分析句子结构可知，中间是个补充说明部分，可有以下表达方式：非限定性定语从句the top of which is cut off；whose top is cut off；介词with的复合结构with its top cut off。