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Tìm số tự nhiên n để (n+3)(n+1) là số nguyên tố Ai nhanh sẽ tick TLHN , cảm ơn và 5 sao VUI LÒNG TRẢ LỜI ĐẦY ĐỦ VÀ CHÍNH XÁC
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21. They would never have accepted his money if they had known his plans A. They knew what he wanted to do, so they refused his money B. They agreed with his wishes because they were glad to have his money C. They didn’t know his plans and never took money from him D. They took the money he offered them without realizing his purpose 22. Tam is not good at English and neither am I A. Neither Tam nor I am good at English B. Either Tam or I am good at English C. I’m not as good at English as Tam is D. Tam isn’t good at English but I am 23. “Let’s go on a walking today?”, said Trang A. Jane suggested going on a walking B. Jane wanted us to going on a walking C. Jane suggested to go on a walking D. Jane allow us to go on a walking 24. “ I’m sorry I have to leave so early” he said A. He apologized for having to leave early B. He apologize that he has to leave early C. He apologized on having to leave early D. He apologize of having to leave early 25. After fighting the fire for 12 hours, the firemen succeeded in putting it out. A. The firemen managed in vain to put the fire out after a 12-hour fight. B. Fighting the fire for 12 hours, the firemen were able to put it out. C. The firemen wasted 12 hours putting the fire out. D. Fighting the fire for 12 hours, the fire was put out. 26. The architect has drawn plans for an extension to the house. A. Plans have been drawn for an extension to the house by the architect. B. The house has had its plans for an extension drawn by the architect. C. Plans for an extension to the house have been drawn by the architect. D. The architect has had the plans drawn for an extension to the house. 27. I don’t have enough money with me now; otherwise I would buy that coat. A. If I didn’t have enough money with me now, I would buy that coat. B. If I had enough money with me now, I would buy that coat. C. If I had enough money with me now, I wouldn’t buy that coat. D. If I didn’t have enough money now, I wouldn’t buy that coat. 28. That expression on his face has some meaning. A. That expression on his face is meaningless. B. That expression on his face means. C. That expression on his face is mean. D. That expression on his face is meaningful. 29. The scientists succeeded in finding a vaccine for that disease. A. The scientists were able to find a vaccine for that disease. B. The scientists were finding a vaccine for that disease. C. The scientists should have found a vaccine for that disease. D. The scientists couldn’t find a vaccine for that disease. 30. Because he doesn’t leave immediately, I call a policeman. A. If he left immediately, I wouldn’t call a policeman. B. If he leaves immediately, I won’t call a policeman. C. Unless he leaves immediately, I will call a policeman. D. Unless he leaves immediately, I won’t call a policeman. 31. Stop talking or you won’t understand the lesson. A. If you don’t stop talking, you won’t understand the lesson. B. If you don’t stop talking, you wouldn’t understand the lesson. C. If you hadn’t stopped talking, you wouldn’t understand the lesson. D. If you hadn’t stopped talking, you wouldn’t have understood the lesson. 32. If the homework is difficult, I will ask you for help. A. Unless the homework is easy, I will ask you for help. B. Unless the homework is difficult, I will ask you for help. C. Unless the homework is easy, I won’t ask you for help. D. Unless the homework isn’t difficult, I won’t ask you for help. 33. Nobody told me that George was ill. A. I wasn’t told that George was ill. B. I was told that George wasn’t ill. C. George wasn’t told to be ill. D. George was told not to be ill. 34. She started work three months ago. A. It is three months since she started work. B. She had been working for three months. C. She is working here for three months now. D. It’s three months that she worked for. 35. My career as a teacher began 14 years ago. A. I have started teaching for 14 years now. B. For 14 years have I been a teacher. C. I was a teacher for 14 years. D. I have been a teacher for 14 years now. 36. As soon as I receive my result, I will phone you. A. I will ring you the moment I receive my result. B. Sooner or later after I receive my result. I will give you a ring. C. After receiving my result, I will call you. D. I will make a phone call to you when I get my result. 37. When I was a young girl, chocolate was one of my favorites. A. When very young, I like eating chocolate cakes. B. Chocolate used to be a favorite of mine when I was a young girl. C. My favorite was chocolate as was a little girl. D. Being a little girl, I like chocolate.

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