题目内容
9．This is useful book， book is my brother's．（ ）| A． | a； the | B． | an； the | C． | a； an | D． | an； a |
分析 这是一本有用的书，这本书是我哥哥的．
解答 答案：A 在第一次提到某个任何事物的时候要用不定冠词a/an，a用于以辅音开头的词语之前，an用于元音因素开头的词语之前，所以第一空填a．当再次提到时要用定冠词the．故选A．
点评 联系冠词的各种具体用法解答，加强对他们的用法规则的记忆和运用．
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