一．规范地书写出26个字母的大小写。（一个大写字母后面紧跟一个小写字母）

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二．五个元音字母是（大小写都写）：

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三、将26个字母按发音分类（写出与所给字母含有相同音素的其他字母）。

Aa____________________________________________________________

Ee_____________________________________________________________

Ii______________________________________________________________

Uu____________________________________________________________

Ff_____________________________________________________________