the rules of gift giving in USA vary a lot,and___them can result in great embrassmentA.don't know B.not knowing选哪个,并且说一下为什么

the rules of gift giving,为什么不用gived呢 gift不是被给吗? RULES OF THE ROAD怎么样 the rules of gift giving in USA vary a lot,and___them can result in great embrassmentA.don't know B.not knowing选哪个,并且说一下为什么 英语翻译The Gift Of Knowing YouThere are gifts of many treasuresFor both the young and old,From the tiniest little trinketsTo great boxes filled with gold.But,put them all togetherAnd they could not stand in lieu,Of the greatest gift of allThe gi the rules of the market 歌词 The best gift of birthday 是什么意 The gift of magi 英文缩写 What's the gift of this promotion? INSPECTOR LEWIS THE GIFT OF PROMISE怎么样 情爱磁场 THE RULES OF ATTRACTION怎么样 the rules of law in life the gift of time is the gift of 这句话如何理解 Are you familiar with the rules of baseball?______ the rules of baseball familiar _ you you learn the rules of English中的the rules of English是什么意思 the gift The gift The students should ____[遵守]the rules of the school. the gift of the magi 的英文故事简介