The meaning of the word is various different situation.
A. depends on
B. depending
C. depending on
D. depended on
网友回答
A. depends on
B. depending
(答案→)C. depending on
D. depended on
解析：考查非谓语动词。句意：单词的意思依据不同的环境而多样。Depend后面一般到搭配介词on，现在分词作状语表示主语正在进行的伴随性的动作，故选C