题型：单选题题类：难易度：普通

人教版（PEP）三年级上册（2024）Unit 4 Part A Let's talk&Ask and answer 同步练习

It's ____ apple. It's ____ big apple.

A、a, an B、an, an C、an, a

举一反三

—No. She's ____ secretary. She works in ____ office.

—I have ____eraser and ____book.

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