组卷网 > 初中英语综合库 > 语法 > 冠词 > 不定冠词 > a/an的区别
题型:单项选择 难度:0.94 引用次数:91 题号:19848599
Mr. Smith is ________ old man and he usually walks his dog after ________ supper.
A.a; theB.an; aC.an; /D.the; /

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