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:较易
  • 人气:211

       happened to be no one in the building when the fire broke out.

A.It B.There C.This D.That
登录并查看解析

happened to be no one in the b