题目内容
5．-Jim，whose room is this？-It's ___．My brother and I live in it．（ ）
| A． | ours | B． | theirs | C． | his |
分析 --Jim，这是谁的房间？
--是我们的，我和我哥哥住在里面．
解答 答案：A．
根据语境My brother and I live in it推测设空处所在的句子的句意是"是我们的，我和我哥哥住在里面．"，根据设空处单词后面没有名词，表达的意思是"我们的"，可以推知设空处缺少名词性物主代词，故选A
点评 本题考查人称代词和物主代词，要求必须看清句子结构，找出句子缺失的成分，再根据代词的分类和用法来确定正确选项．
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