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 1771

A greenhouse is a building _______ of glass _______ for keeping plants warm when the outside temperature is low..

A.made, which is used B.which is made, is used
C.made, being used D.is made, used
登录免费查看答案和解析
相关知识点

Agreenhouseisabuildingofglassf