Cover of the textbook Speakout Pre-Intermediate - Workbook

The key answer of exercise 4

The key to exercise solutions in chapter 4.2 for the textbook Speakout Pre-Intermediate - Workbook with authors Antonia Clare, J. J. Wilson and Damian Williams from Pearson Education

Question

  1. Rewrite the sentences. Replace the underlined words with phrases with can / can’t.
  2. Rewrite the sentences. Replace the underlined words with phrases with have to / don’t have to or must / mustn’t. There may be more than one possible answer.

Answer

a)

  1. You can't have your mobile phone switched on.
  2. You have to register before you can use the site.
  3. I'm afraid she can't speak to you at the moment.
  4. You can use my computer if you want to.

b)

  1. You have to / must be good at foreign languages if you want to learn Mandarin.
  2. We have to / must be there on time, or they won't let us in.
  3. We don't have to have a licence to fish here.
  4. You mustn't tell him l'm here.