Exercise 6: Choose the best option to complete the sentence. 1. ................. are you doing? - I’m reading a book. A. Whom B. Who C. Whose D. What 2. ................. coffee is this? – It’s mine. A. Who B. Which C. Whose D. What 3. ................. of these problems are you most interested in? A. Who B. Whom C. Which D. What 4. ................. do you know about this subject, and who taught it to you? A. Which B. Who C. What D. Whom 5. ................. is responsible for the accident? A. Whose B. Who C. Which D. Whom 6. ................. children are they? - The Browns’. A. Whose B. Which C. Whom D. Who 7. ................. doesn’t understand what the teacher has explained? A. Which B. Whose C. Who D. What 8. ................. is the weather like today? A. What B. Who C. Which D. Whose 9. ................. the longest river in the world: the Amazon or the Nile? A. Whom B. What C. Who D. Which 10. With ................. did you go to the seaside? A. who B. whom C. what D. which Exercise 7: Complete the questions with suitable question words. 1. .................... time is it? – 7 o’clock. 2. .................... old are you? – Thirteen years old. 3. .................... do you live with? – My parents. 4. .................... is your birthday? – April 28th 5. .................... is your favorite subject? – Maths. 6. .................... book is yours? – Mr Tom’s 7. .................... is your name? – Dai Loi. 8. .................... are your parents now? – In Ha Noi. 9. .................... is your best friend? – Linda. 10. .................... is your favorite color? – Blue.