Choose the word or phrase that best completes each sentence below. 21. _____ will take the money back? Mary. A. Who B. What C. Why D. Whose 22. _____ does the man drink milk? Everyday A. Who B. How often C. Where D. When 23. _____ sugar should be bought? Two kilos and a half. A. How heavy B. How many C. How much D. How about 24. _____ does he do business? To earn a living. A. Who B. What C. Where D. Why 25. _____ could they swim? They could swim there. A. Who B. What C. Where D. When 26. _____ did they arrive in London? On August 2. A. Who B. What C. Where D. When 27. _____ did you buy this T-shirt? In Bangkok, Thailand. A. When B. Where C. What D. Who 28. _____ wants to attend “The Flower Festival” in Dalat this year? A. How B. What C. Why D. Who 29. _____ is this Festival held? Every 2 years. A. How long B. Why C. How often D. Who 30. _____ does “Westlife” concert take place? This June. A. How often B. What C. When D. Why