III. Find a mistake in each sentence and correct it:
26. Because most people book tickets long in advance, they cannot return home for Tet.
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27. While spring comes, many Vietnamese people prepare for a new festival
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28. We do not have many carnivals in Vietnam; while we have many traditional festivals.
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29. He was a talented and kind emperor, so he had to suffered poor health.
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30. Her voice is beautiful, when her performance is not skillful
mình cần gấp, mn giúp mình với
