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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 704

—He is suffering from __________ in his back, but he is still working.
—Maybe he knows no __________, no gains.

A.pain ; pain
B.a pain ;pains
C.pains ; pain
D.painful ; pains
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—Heissufferingfrominhisback,bu