Question

【题目】We should help keep the ___________/n'varnmnt/ clean.

Answer 1

【答案】environment

【解析】

句意：我们应该帮助保持环境清洁。

考查单词的音标。keep sth. +adj.保持某物……；environment环境，名词，音标为/n'varnmnt/；keep the environment clean保持环境清洁。故答案为environment。