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e D. my 39. Can you tell me ______ lives on this floor? A. which B. whom C. whose D. who 40. He began to teach _______ English last year. A. he B. his C. he’ s D. himself 41. Oh, _____ new bike is over there? It’ s so nice! Mm? , Lily told me that she bought a bike yesterday. Maybe it’ s hers. A. which B. who C. whose D. what 42. Tom and Mike are good friends. _______ often help each other. A. They B. Their C. Them D. Theirs 43. Excuse me, ______ is the way to the nearest supermarket? A. why B. where C. who D. which 44. _______? He is a puter engineer. A. What does your father look like? B. What does your father do? C. How old is your father? D. How does your father go to work? 45. ______ do you want to b when you grow up? A teacher. Because I love children very much. A. When B. How C. What D. Why 46. What’ s ______ over there? It’ s a machine for cutting grass. A. this B. its C. it D. that 47. The performance of Class A students is much better than _______ of Class B students. A. this B. those C. one D. that 48. Hi, Mary! Will you please show _____ your new bag?