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基础训练 4·_A_are good friends.A·Peter andl B. I and PeterC·He D. She 5 ·-Are these your grandparents?—No,B. A·they are B. they aren'tc·he is D. she isn't 6 ·Dad,_Cmy friend Tom.A ·he's B. it's C·this is D. she's
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基础训练 4·_A_are good friends.A·Peter andl B. I and PeterC·He D. She 5 ·-Are these your grandparents?—No,B. A·they are B. they aren'tc·he is D. she isn't 6 ·Dad,_Cmy friend Tom.A ·he's B. it's C·this is D. she's