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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 578

Although we met with some difficulties in building the railway, we were still _____ about finishing it before the deadline.

A.consistent B.enthusiastic C.responsible D.optimistic
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Althoughwemetwithsomedifficult