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18. How heavy is he?
19. What he invented is a deep - sea diving vessel
20. How long will nam stay in the library?
21. Tim plays soccer skilfully
22. Miss Phuong is a fast runner
23. Linh is taller than Na
24. Mr. Minh is good at playing badminton
25. Mr. Tan is a carefull driver
26. A building is bigger than a house