7B 8 Add commas to the sentences where necessary.


a My brother Leo who is an interpreter works for the United Nations in New York.


b His wife who’s Colombian is a novelist.


c Her latest book which became a bestseller was translated into 12 languages.


d They rent a flat which belongs to a colleague at the United Nations.


e Their son who is doing a degree in International Relations lives at home.


f He took a gap year which he spent learning Mandarin. FOCUS Non-defining relative clauses


When we write, we often use non-defining relative clauses to add extra information to a sentence. It helps keep our writing concise.


• We use who for people and which for things.


• We use commas before and after the non-defining relative clause in the middle of a sentence.


Example My teacher, who is keen on exercise, rides a bike to class.


C21 SKILLS 9 10


Go to page 178 for a task about the famous photojournalist Lynsey Addario.


Write a short biography about a living person who you admire (150–200 words). Include at least four relative clauses.


Step 1 Research the person and make a list of interesting facts. Step 2 Plan the biography and then draft it. Step 3 Swap paragraphs with another student.


Step 4 Check each other’s work and then give constructive feedback following the steps in the C21 skills box.


Step 5 Update your draft, taking account of your partner’s feedback.


COMMUNICATION: The feedback sandwich


When you give feedback, it’s important to be positive and encouraging. Any criticism should be constructive. Try these steps: 1 Compliment: Say something positive about the writing.


2 Suggestion: Suggest improvements, for example, punctuation and spelling.


3 Compliment: Make another positive comment.


>> Do the exercises on page 103. English for the 21st Century • Unit 7 99


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