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thienloii98st
2 năm trước
Viết lại biểu thức dưới dạng bình phương,lập phương hoặc tích các thừa số a) 3x^3 + 9x^2 + 9x + 3 b) x^2y^2 - z^2 c) 4x^2 + 12xy + 9y^2 d) ( x + y )^3 - ( x - y )^3
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15. "I can see you later", he said. a. He said he could see me later b. He said I can see you later c. He said I can see you later d. He said he can see me later 16. "I shall tell him exactly what I think", she said. a. She said she should tell him exactly what she thought b. She said she would tell him exactly what she thought c. She said she shall tell him exactly what she thinks. d. She said I would tell him exactly what I thought. 17. "Are you willing to travel?" she asked. a. She asked me am I willing to travel? b. She asked me if I am willing to travel c. She asked me was I willing to travel? d. She asked me if I was willing to travel 18. "You should see a specialist", he told me. a. He told me I should see a specialist. b. He told me you should see a specialist. c. He told me I should have seen a specialist. d. He told me to should see a specialist. 19. "I must have slept through the alarm", she said. a. She said she must have slept through the alarm. b. She said I must have slept through the alarm. c. She said she left through the alarm. d. She said she had to have slept through the alarm. 20. "If you pass your test, I'll buy you a car", he said. a. He said that If I pass my test, he'll buy me a car. b. He said that If you pass your test, he would buy you a car. c. He said that If I pass my test, he would buy me a car. d. He said that If I had pass my test, he would have bought me a car. 21. "If you passed you test, I would buy you a car", he said. a. He said that if I passed my test, he would buy you a car. b. He said that if you had passed your test, he would have bought you a car. c. He said that if I had passed my test, he would have bought me a car. d. He said that if you passed your test, he would buy you a car. 22. "If you'd passed your test, I'd have ought you a car", he said. a. He said that I'd passed my test, he'd have bought me a car. b. He said that if I passed my test, he would buy me a car. c. He said that if you had passed your test, he would have bought you a car. d. He said that if you had passed your test, he would buy you a car. 23. The police officer said to us, "Where are you going?" a. The police officer asked us where we were going? b. The police officer asked us where were we going? c. The police officer asked us where are we going? d. The police officer asked us where we are going? 24. Clair asked, "What time do the banks close?" a. Claire wanted to know what time the banks closes? b. Claire wanted to know what time do the banks close? c. Claire wanted to know what time did the banks close? d. Claire wanted to know what time the banks closed. 25. "How long have you bee working at your present job?" she asked a. She asked me how long I had been working at my present job. b. She asked me how long had I been working at my present job. c. She asked me how long I have been working at my present job. d. She asked me how long have you been working at your present job. 25. "What do you do in your spare time?" she asked. a. She wanted to know what I do in my spare time. b. She wanted to know what I did in my spare time. c. She wanted to know what did I do in my spare time. d. She wanted to know what do I do in my spare time. 26. "Do you have a driver's license?" she asked a. She asked me did you have a driver's license? b. She asked me do you have a driver's license? c. She asked me if I had a driver's license? d. She asked me if I have a driver's license? 27. "Where did you go?". a. She asked me where I had gone. b. She asked me where did you go. c. She asked me where did I go. d. She asked me where you had gone. #giúp e vs

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