Underline and correct the mistake in the sentences
1- They didn't let me to go.
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2- When John is four, he came to London with his parents.
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3- How long have you living here ?
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4- They are going to school by foot.
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5- Do you mind if I smoking in the room ?
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6- His garden isn't as large than mine.
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7- We haven't talked to your sister since a long time.
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8- There are much than eighty stores in the mall.
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9- The toys keeping in the box are worth 30 dollars.
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10- This school is different mine.
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