首页 / 高中英语 / 试题详细
  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 329

He failed the mid-term examination and only then _______ how much time he had wasted.

A.had he realized B.did he realize
C.he had realized D.he realized
登录免费查看答案和解析

Hefailedthemidtermexaminationa