句型转换。1．The basketball is 50 yuan.（对画线部分提问）
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2．There are twenty-four hours in a day.（对画线部分提问）
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3. What is exercise? (用 play basketball回答)
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4．I eat bananas once a day.（对画线部分提问）
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5．I buy someballs at the store.（加yesterday把句子改为一般过去时）
____________________________________________________1.How much is the basketball?
2.How many hours are there in a day?
3.Playing basketball is exercise.(答案不唯一)
4.How often do you cat bananas?
5.I bought some balls at the store yesterday.