Cover of the textbook New Total English Upper-Intermediate - Students' Book

The key answer of exercise 5

The key to exercise solutions in chapter 9.2 - It's a mystery! for the textbook New Total English Upper-Intermediate - Students' Book with authors Araminta Crace and Richard Acklam from Pearson Education

Question

Look at the examples (1-7) in the Active grammar box and complete the rules (A-F).

Answer

  1. must
  2. must + have
  3. might
  4. might + have
  5. can't
  6. can't / couldn’t + have