按要求變換句型。
1. Su Yang is cleaning the library now. (將now換成often)
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2. We did some shopping yesterday. (變成一般疑問句)
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3. The new comb is hers. (對畫線部分提問)
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4. There was some milk in the bottle. (變成否定句)
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5. they, on, last, did, the, the, milk, farm, Saturday, cows (連詞成句)
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