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

The key answer of exercise 2 (9.2)

The key to exercise solutions in chapter Grammar time 9 for the textbook Wider World 4 - Student's Book with authors Suzanne Gaynor, Kathryn Alevizos and Carolyn Barraclough from Pearson Education

Question

Look at the sentences in Exercise 1 again. Which relative clauses are defining and which are non-defining? In which sentences can you leave out the relative pronoun?

Answer

  1. D → can’t be left out
  2. D → can be left out
  3. ND → can’t be left out
  4. D → can be left out
  5. D → can’t be left out
  6. ND → can’t be left out