Cover of the textbook Navigate Upper-Intermediate B2 - Workbook

The key answer of exercise 5

The key to exercise solutions in chapter 8.1 - The Internet of Things for the textbook Navigate Upper-Intermediate B2 - Workbook with authors Rachael Roberts and Caroline Krantz from Oxford University Press

Question

Add commas to the following sentences if they contain a non-identifying relative clause. Tick them if they do not need (further) commas.

Answer

  1. Kevin, who I went to university with, is now CEO of a large software development company.
  2. ✔
  3. ✔
  4. My phone charger, which is the only one I've got, seems to have disappeared.
  5. ✔
  6. ✔
  7. ✔
  8. My sons, who are ten and twelve, both own smartphones.
  9. These wireless speakers, which I bought only last week, don't work.