Cover of the textbook New Headway Intermediate - Workbook

The key answer of exercise 6

The key to exercise solutions in chapter 5 - Grammar for the textbook New Headway Intermediate - Workbook with authors Liz Soars, John Soars and Paul Hancock from Oxford University Press

Question

Complete the sentences with must / mustn't, have to / had to or don't have to / didn't have to.

Answer

  1. a) must; b) have to
  2. a) must; b) had to
  3. a) mustn't; b) don't have to
  4. a) must; b) have to
  5. a) must; b) didn't have to
  6. a) don't have to; b) mustn't