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¡¡¡¡£¨ ) 1. --Have you had ________ breakfast yet? -- No, not yet.
¡¡¡¡A./ B. a C. the D. an
¡¡¡¡£¨ )2. Let's look at the bag. Can you see _____“s”on the corner of_____ bag?
¡¡¡¡A. a, a B. a, the C. an, a D. an, the