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We knock _____people’s doors, and they usually give us some candy _____ a treat.

A. on, to           B, at, to           C. on, as           D. on, on

 

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We knock _____people’s doors, and they usually give us some candy _____ a treat.
A. on, to           B, at, to           C. on, as           D. on, on

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We knock _____people’s doors, and they usually give us some candy _____ a treat


  1. A.
    on, to
  2. B.
    , at, to
  3. C.
    on, as
  4. D.
    on, on

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We knock _____people’s doors, and they usually give us some candy ______ a treat.
[     ]
A. on, to
B, at, to
C. on, as
D. on, on

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We knock _____people’s doors, and they usually give us some candy _____ a treat.
A. on, to           B, at, to           C. on, as           D. on, on

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