Question
Updated on
10 Oct 2019

  • Korean
  • English (US)
  • Guarani
Question about English (US)

1. He used to call me on math questions.
2..He used to call me on his problems.

Are 1 and 2 all correct?

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1. He used to call me on math questions.
2..He used to call me on his problems.

Are 1 and 2 all correct?
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