启教通信息平台
  首页 / 试题 / 高中英语 / 试题详细
  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1535

_____ scores of times, but he still couldn’t understand it.

A.Having explained B.Having been explained
C.Though it was explained D.It was explained
登录并查看解析

_____ scores of times, but he