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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1425

When _______help, one often says ‘Thank you. ‘or 61t's kind of you.'
A offering     
B. to offer
C. be offered    
D. offered

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Whenhelp,oneoftensays‘Thankyou