51. as cold as ……… A. ice B. snow C. winter D. water 52. as sober as a ……… A. bird B. rooster C. judge D. lawyer 53. sleep like a ……. A. person B. log C. wood D. pig 54. as …….. as a rock A. strong B. quiet C. firm D. dry 55. spread like ……. A. wood B. wildfire C. water D. news 56. at a ……. pace : rất chậm A. turtle’s B. horse’s C. buffalo’s D. snail’s 57. at good as …….. :tốt như lúc mới A. young B. new C. worth D. previous 58. as ……. as the glass A. brittle B. fragile C. broken D. cake 59. as bald as a …….. A. ball B. bag C. coot D. hill 60. as ……. as a button A. intelligent B. bright C. smart D. clever