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yqh011229
2 năm trước
Cho x^4-x^3+mx^2+2x+4=0 tìm m để pt có 4 no pb
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Mn giúp mik với . Mik cảm mơn mn nhìu ạ Add in, at, on where necessary.(Thêm vào chô trống bằng IN, AT ,ON nếu cần thiet) 1. Kate doesn’t usually works……….the weekend, but she had to work…….last Sunday. 2. We are leaving……………..tomorrow morning, but we will be back………….three weeks’ time. 3. Did she send you a postcard……….your birthday? 4. ……….what time does the meeting start…………..Monday? 5. I can often get home from work……………about half an hour …………….Friday evening. 6. They went on holiday to Spain……..Easter and then again………….the summer. 7. The bridge was built ………………..the 16th century. 8. Did you enjoy driving ……………….night? 9. I’m taking my driving test………….4:30 …………..July 3rd. 10. He was born………….1900 and died……………..1972. 1. I was born _____ January 1st, 1965. 2. It often rains _____ October _____ Vietnam. 3. What are you going to do _____ 2020? 4. I don’t know but I am going to go to college _____ September this year. 5. Well, let’s go for a walk ______ the weekends. 6. I don’t know what he is doing ______ the moment. 7. What did he do ______ the ninth of April, 2000? 8. She often hears some strange noise _______ midnight. 9. Does it rain _____ Spring?

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