单词组句
1.careful; when; be; start; you; fire; a
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2.fires; a; burn; hill; of; trees; lot
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3.downstairs; sometimes; students; up; some; may; go; not; queue; they; before
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4.meet; forget; playground; some; the; may; to; in; students
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5.else, going; Miss Guo; to; what; is, do
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