题目内容
4.On histwelfth(twelve)birthday,he had a good time with his friends.分析 在他十二岁生日时他和他的朋友们玩得很开心.
解答 答案:twelfth.根据On his…(twelve)birthday联系给出的词twelve可知此处是指在他十二岁生日时,也就是他的第十二个生日,用序数词,修饰名词birthday;twelve的序数词是twelfth.因其前有物主代词his,所以此处不必再加定冠词the.故答案是twelfth.
点评 这是个常考题,考查的是序数词,课下多总结其用法及转化形式.
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