Bài 1 : Viết lại các câu sau ở dạng phủ định và câu hỏi :
a. This sign says " Stop ".
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b. Mr . Quang is eating his breakfast at a foodstall now.
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c. She travels to works by motorbike every morning.
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d. He is unloading the vegetables at the market now.
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e. That sign says " No turning right ".
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g. That man is going into the one - way street.
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