－Bob, have you packed yet?－Yes, Mum.－Look over and that you have taken everything you need.A.look forB.make sureC.find outD.work out
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B解析试题分析：look for寻找;make sure确信,证实;find out查明,找出;work out解决,计算出. 句意:鲍勃,你装好了吗?_是的,妈妈. _检查一遍,确信你带上了你需要的每件东西. 结合语境可知选B.考点：短语辨析
点评：解答此类题型的要点是了解各个短语的基本含义及用法的不同，同时注意其表示多个含义的现象，然后结合语境选择合适