题目内容

Believe it or not, weather forecasts seven days in advance are,        , wrong half the time, according to a US survey.
A.at firstB.in briefC.on averageD.by chance
练习册系列答案
相关题目

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