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Can / Could / Be able to - AB1

  •  English    20     Public
    Put the correct form of either "can" or "be able to" for each sentence. Use a form of be able to only if a form of can or could is not possible.
  •   Study   Slideshow
  • After 6 hours climbing, we___________ reach the top of the mountain.
    were able to/could
  •  20
  • Yesterday I lost my keys and I looked for them everywhere, but I _________ find them.
    couldn't/wasn't able to
  •  15
  • Sally wasn't at home, but I _________ contact her at her office.
    was able to/could
  •  20
  • If you tell him your problem he might __________ help you.
    be able to
  •  15