Is Sam going to visit his grandparents next Sunday?no,he ________ (isn't,doesn't)

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Is Sam going to visit his grandparents next Sunday?no,he ________ (isn't,doesn't)

isn't

isn't 通常情况下,一般疑问句答句用的动词与一般疑问句句首用来提问 的动词一直,否定回答的加NOT .

isn't

isn't