Sắp xếp thành câu hoàn chỉnh

1. channels / in Vietnam? / are there / How many

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2. the first time / I / to a foreigner. / have talked / This is

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3. TV program / cartoons. / is / Nam’s favourite

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4. is the / My grandfather / in my family. / oldest person

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help me cần rất gấp ạ