题目内容

21、Fred entered without knocking and, very out of breath, sank _______ a chair.

A. on                           B. off                           C. into                  D. to

试题答案

21、C

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