摘要: Their living conditions have been in the past few years. 析:该空应填“改善 的动词形式.因受have been影响.应填过去分词improved / bettered.

网址:http://m.1010jiajiao.com/timu_id_491997[举报]

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网