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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 924

Old Richard,        ill so long, is losing his memory and needs to be attended to.

A.to be B.being C.having been D.to have been
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OldRichard,illsolong,islosingh