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:173

I know one of the things _____I was unsure about was _____ hard it would be to climb   this mountain.

A.that; how B.what; how C.which; what D./; what
登录免费查看答案和解析

IknowoneofthethingsIwasunsurea