Ex3:Hãy chuyển các câu sau sang phủ định và nghi vấn: 1. They went to Nha Trang last month. -> -> 2. He played table tennis with his father. -> -> 3. Lan saw you in the park last week. -> -> 4. We were in the countryside last summer. -> -> 5. Mrs. Robinson bought a poster. -> -> 6. Liz enjoyed her vacation in Da Lat last year. -> -> 7. Her aunt gave her a new skirt -> -> 8. He was in out class two hours ago. -> -> 9. They watched a good foolballmatch on TV last night. (-( ................? 10. Peter sent

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