Relative clauses: defining and non-defining (Difficult) Quiz Home › IELTS › IELTS English Grammar › Relative clauses: defining and non-defining (Difficult) 📝 IELTS – English Grammar – Relative clauses: defining and non-defining – Difficult 20 questions · 15 min timer · Explanations included · Free 1. Identify the error in the following sentence: 'The author, that wrote the bestseller, is signing books today.' Use of 'that' instead of 'who' Use of commas around the clause Use of 'bestseller' instead of 'popular book' No error None 1 out of 18 2. Choose the correct sentence using a defining relative clause. The students, who were late, missed the bus. The students who were late missed the bus. The students that were late, missed the bus. The students which were late missed the bus. None 2 out of 18 Loading questions... 3 out of 18 Loading questions... 4 out of 18 Loading questions... 5 out of 18 Loading questions... 6 out of 18 Loading questions... 7 out of 18 Loading questions... 8 out of 18 Loading questions... 9 out of 18 Loading questions... 10 out of 18 Loading questions... 11 out of 18 Loading questions... 12 out of 18 Loading questions... 13 out of 18 Loading questions... 14 out of 18 Loading questions... 15 out of 18 Loading questions... 16 out of 18 Loading questions... 17 out of 18 Loading questions... 18 out of 18 Click Submit to see your final score! Previous Start Quiz Next Time's upTime is Up!