51. She/ study/ hard/ in order/ pass/exam.
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52. Mary/ asked/ me/ go/ market/ for/ her. ............................................................................................
53. Sarah/ have/ live/ Bien Hoa city/ for/ 5 years.
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54. What/ they/ going/ do/ this weekend? ..............................................................................................
55. How long/ have/ you/ study/ English? 
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56. She/ old/ enough/ put on/ clothes/ herself. .......................................................................................
57. There/ used / be/ theatre/ this neighborhood . ..................................................................................
58. My mother/ told/ me/ not/ play/ computers/ games/ more/ 2 hours. ................................................
59. My father/ humorous/ and/ enjoy/ tell/ jokes
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60. Minh/ same age/ Hoa. ......................................................................................................................