摘要: -What’s on the floor? - A. That’s my key. B. There’s a book. C. It’s red.
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—What’s on the floor?
—
A. That’s my key. B. There’s a book. C. It’s red. D Yes , it is .
—What’s on the floor?
—
A. That’s my key. B. There’s a book. C. It’s red. D Yes , it is .
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