按要求改变祈使句：

You can not draw on the blackboard.(改为祈使句)

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按要求改变祈使句：

Stop talking in the classroom.(改为同义句)

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按要求改变祈使句：

You must finish your homework first.(改为祈使句)

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按要求改变祈使句：

Put your bikes over there.(改为否定句)

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将下列句子改为选择疑问句：

Is it a boy? Is it a girl?

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将下列句子改为选择疑问句：

Would you like a glass of tea? (a glass of milk)

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将下列句子改为选择疑问句：

Shall we go to play football after school? (basketball)

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将下列句子改为选择疑问句：

How often do you take the medicine? Twice a day. (three times)

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将下列句子改为选择疑问句：

Did you study at this school in 1995? (1996)

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You can't draw on the wall.(改为祈使句)