Cover of the textbook Performer B2 - Workbook

The key answer of exercise 7

The key to exercise solutions in chapter Unit 6 - Save the Earth for the textbook Performer B2 - Workbook with authors Marina Spiazzi, Marina Tavella, Margaret Layton from Zanichelli

Question

Choose the correct alternative.

Answer

  1. mustn't
  2. had to
  3. don't have to
  4. mustn't
  5. Do you have to
  6. don't have to
  7. have had to

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