题干
根据句意及首字母提示完成单词
① Paper can be r____. We'd better not throw it away.
② It is important to try to save e____.
③If we don't protect our e____, the earth will be destroyed.
④ Our teacher tells us to collect r____ plastic bags.
⑤ Gold, silver and iron are all m____.
答案(点此获取答案解析）
recycled,energy,environment,reusable,metal
