翻译下列句子。
①我的双肩背包在哪儿?
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②她的棒球在哪儿?
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③他的书在书橱里吗?
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④我的钥匙在梳妆台上。
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⑤她的电脑游戏在床下面。
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⑥我的电脑在桌子上。
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⑦男孩们和女孩们在树底下。
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⑧一支钢笔在英语书中。
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①Where is my backpack?
②Where is her baseball?
③Are his books in the bookcase?
④My keys are on the dresser.
⑤Her computer game is under the bed.
⑥My computer is on the table.
⑦The boys and the girls are under the tree.
⑧A pen is in the English book.