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:0.65 引用次数:107 题号:3299160
—You look so sad. What's wrong with you?
—I bought ______ bicycle, but when I rode it, one of _____ wheels became flat.
A.a;theB.; the
C.a; /D.the; a

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