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:123

In the last twenty years, seven Canadian scientists _____ the Nobel prize!

A.won B.had won C.was winning D.have won
登录免费查看答案和解析

Inthelasttwentyyears,sevenCana