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A. Beibei B. Baobao C. Maomao D. Nini
⑴Good morning, Ms Zhang. A.
⑵Hello, I'm Sam. B.
⑶—How are you, Lingling? C.
—I'm fine, thank you.
⑷—Goodbye. D.
—Byebye.
A. I'm fine, thank you.
B. I'm Xiaojun.
C. Good afternoon, boys and girls.
D. Good morning, Mr. Li.
—
—_______, Sam.
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