Viết lại câu theo chỉ dẫn trong ngoặc 
1, Why/not/you/go/school/yesterday?(Make a complete question)
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2, The dirty vegetables made Ba sick.
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3, He has a big breakfast. She has a big breakfast. ( combine using "so")
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4, Mr long bought a lot of beautiful toys for his son. ( make a question with "what")
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