The key to exercise solutions in chapter 8c - Grammar in use for the textbook On Screen B1+ - Student's Book with authors Virginia Evans and Jenny Dooley from Express Publishing
Question
Fill in.
Mark the sentences D (defining) or ND (non-defining). Put commas where necessary.
1) D; 2) The Louvre, which is a museum in Paris, is visited by many tourists every year. ND; 3) D; 4) Simon, who booked our tickets, works in Dubai International Airport. ND; 5) Ann, whose cottage is in Cornwall, is now in Los Angeles. ND; 6) Tina, whose father is a travel agent, has brought us the tickets. ND; 7) D; 8) Peter, who has been a tour guide here for many years, will show you around. ND