Identify a mistake in each sentence and correct it

GIÚP MÌNH VS
Q uestion VI. Identify a mistake in each sentence and correct it.
1.In Australia, you mustn’t to comment on a person’s accent.
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2.In my family, children has to get permission before leaving the dining table.
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3.When I came, the whole family is having dinner around a big dining table.
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4.Lang Lieu couldn’t buy any special food while he was very poor.
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