按要求变换句子。(10分)
(1)That is a pen.(变为复数)
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(2)They’re from Canada.(变为一般疑问句)
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(3)There are 45 students in the classroom.(根据答句提出问句)
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(4)Is your father at home?(作否定回答)
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(5)Where are your books?(根据实际情况作答)
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