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44. He was born______15th January.
A. in             B. of            C. at            D. on    
45. We have lived in Hanoi______4 years.
A. in            B. since        C. for            D. at
46. She has come here______  yesterday.
A. in            B. since        C. for            D. on
47. This year the only award for the______student belong to him.
 A. good        B. well            C. better        D. best
48. The restaurant has the ______ for serving some of the finest food.
    A. repute        B. reputation        C. reputed        D. reputable
49. ______aspects of learning English do you find the most difficult?
    A. What        B. Where        C. When        D. Why
50. We think that with our solidarity we can ______this difficulty.
    A. overdo        B. overgo        C. overtake        D. overcome