The classroom is dirtier than before. (用同等比较级改写句子)The classroom is ____ ____ clean as before.
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That isn’t my key. (改为复数句)____ ____ our keys.
She likes reading books. (对划线部分提问)____ ____ she like?
He has drunk the milk. (对划线部分提问)____ has he ____?
Shanghai is the biggest city in China. (改为同义句)Shanghai is ____ than ____ ____ city in China.