题目内容

30. Mr. Keller ______ forty cigarettes a day until he gave it up.

   A. had smoked             B. smokes             C. have smoked            D. smoked

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