句型转换。
1．They will go to the store.（改为一般过去时）
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2．Did you buy snacks?（作肯定同答）
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3．He bought some ice cream yesterday.（对画线部分提问）
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4. Let's, the, gym, to, go, basketball, play, to (连词成句)
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5．They will ride their bikes to the store.（对画线部分提问）
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