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—, it is. (Yes/No)
⑴Hello, I'm Sam. A. I don't know.
⑵Is it a yellow pen? B. Hello, Sam.
⑶Where's the bag? C. No, it isn't.
⑷How many boys? D. It's a bird.
⑸What's this? E. Eight boys.
A. B. C.
D. E.
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