Viết lại câu: Bob always walks to work. He is living in the city.(Because)

4. Bob always walks to work. He is living in the city.(Because)
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5. My house is near the beach, but I rarely go swimming. (Eventhough)
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6 My brother is working in Ha Noi. He comes home on every public holiday. (So)
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7. "Where did you stay yesterday, Nam?" Mary asked Nam
→Mary asked Nam
8.. I think the Chinese cars are not so expensive as Japanese cars. (Comparison)