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 633

Loulan is believed ____ by sandstorms from AD 200 to AD 400.

A.to be gradually covered over
B.to have been gradually covered over
C.being gradually covered over
D.having been gradually covered over
登录免费查看答案和解析

Loulanisbelievedbysandstormsfr