优题课 - 聚名师,上好课(www.youtike.com)
  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:1384

---How long has your brother been working in this factory?
---_____he dropped from school in 2010.

A.When B.Until C.Since D.Before
登录免费查看答案和解析

Howlonghasyourbrotherbeenworki