题目
第4题
A.For instance, recycling is a effective way to reduce the carbon footprint of the office.
B.For instance, recycling is one of the effective ways to reduce the carbon footprint of the office.
C.For instance, recycling is effective to reduce the carbon footprint of the office.
第5题
第6题
第7题
第9题
为了保护您的账号安全,请在“赏学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!