Cover of the textbook Wider World 4 - Student's Book

The key answer of exercise 3

The key to exercise solutions in chapter 8.4 - Grammar for the textbook Wider World 4 - Student's Book with authors Suzanne Gaynor, Kathryn Alevizos and Carolyn Barraclough from Pearson Education

Question

Study the Grammar box. Find more examples in the dialogue.

Answer

Obligation

  • we have to put
  • you'll have to hurry up
  • He had to go back
  • we have to clean up
  • We have to clean up
  • you'll have to change

Lack of obligation

  • You didn’t have to wait

Prohibition

  • we won’t be allowed to do it
  • we're allowed to do this (lack of prohibition, i.e. permission)
  • we mustn’t push