VIẾT LẠI CÂU BẰNG TỪ GỢI Ý

VIẾT LẠI CÂU BẰNG TỪ GỢI Ý

1. Tomy came to the party.He also danced and sang much. ( but)
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2. We started behaving well with him last month. ( for)
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3.This is the most marvellous scenery I have ever seen. ( more/such) 
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4. When did you started using this computer?

=>How long