Irregular verbs - part I

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Across
  1. 2. be (singular)
  2. 3. drink
  3. 4. become
  4. 5. buy
  5. 6. do
  6. 7. cost
  7. 9. bring
  8. 10. fall
Down
  1. 1. come
  2. 2. be (plural)
  3. 4. begin
  4. 5. build
  5. 7. choose
  6. 8. eat