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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1329

The teaching building,         to be environmentally friendly, will be completed next year.

A.designed B.designing
C.being designed D.having designed
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相关知识点

Theteachingbuilding,tobeenviro