句型转换。
1.We go there by bus . (改为用let开头的句子)
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2.The clock is20 yuan. (对划线部分提问)
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3.Tom has enough money. (改为一般疑问句)
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4.It closes at 6 o'clock. (对划线部分提问)
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5.There are a lot of buses here.(改为单数形式)
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