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Lucy could ride a bike when she was eight years old．(改为同义句)

Lucy could ride a bike ________　________　________　________ eight．

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Has Gina got an eraser？(改为同义句)

________ Gina ________ an eraser?

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You must listen to the teacher．(改为一般疑问句)

________　________ listen to the teacher?

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I put some food on my plate．(就划线部分提问)

________　________ food ________ you put on your plate?

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Must I wash up？(作出否定回答)

No, ________　________．

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I can talk loudly in the classroom．(改为否定句)

I ________　________ loudly in the classroom．

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He must finish his homework now．(就划线部分提问)

________　________ he finish his homework?

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你离开办公室之前记得一定要关灯。

________　________ to turn the lights off before you left the office．

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他到底在哪？

Where ________　________ can he be?

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I couldn’t think of anything to say at that time．(改为肯定句)

I ________ think of ________ to say at that time．