Past tense and Modal verbs

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Across
  1. 3. my mother is constantly ________ many things at the same time.
  2. 5. Andrea _______ for 12 hours last night in her tesis.
  3. 6. Camila ______ an expensive present to her mom.
  4. 8. my friend is always ______ in other activities during the class.
  5. 10. I was _____ my dinner when the phone rang.
  6. 12. modal verb for giving suggestion.
  7. 13. can be used to talk about deduction 50% and possibility.
Down
  1. 1. used to talk about ability or possibility in the present.
  2. 2. you use this modal to talk about about abilities or posibilities in past.
  3. 4. modal verb for a formal request, deduction 50% and possibility.
  4. 5. alex _____ with his little brother to the cinema.
  5. 7. the verbs in the main form are called _______.
  6. 9. Lucy _____ very sad when she said goodbye to her friends.
  7. 11. modal verb used to talk about prohibition.