问题
选择题
Which material can be thrown into the sea ________ on the nature of the material?
A．depended
B．depending
C．to depend
D．depends
答案
答案：B
题目分析：考察非谓语动词用法。本句中的depending on the nature of material在句中做状语。句义：根据材料的性质来看，那些材料可以被扔进海里？这里的depending on相当于according to…根据…；故B正确。