cần bao nhiêu gam SO2 được tạo thành khi đốt một hỗn hợp gồm 128g lưu huỳnh và 100g oxi

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I. Choose the correct sentence among A, B, C or D which has the same meaning as the given one: ( 1 point) 1. My career as a fashion designer began 15 years ago. A. I have been a fashion designer for 15 years now. B. I was a fashion designer for 15 years. C. I have been a fashion designer since 15 years. D. I have started designing for15 years now. 2. They showed his collection of jeans on television. A. On television they had his collection of jeans shown. B. His collection of jeans was shown on television. C. His collection of jeans is being shown on television. D. The television was shown his collection of jeans. 3. The students at this school have to wear uniforms. A. Uniforms are worn by students at this school. B. Uniforms have to wear at this school by students. C. It isn’t necessary for students to wear uniform at this school. D. Uniforms have to be worn at this school by students. 4. I have never seen this style of jeans before. A.It is the new chance that I saw this style of jeans. B. It is this style of jeans that I have never seen. C.It is the fact that I have ever seen style of jeans. . D. It is the first time I have ever seen style of jeans. 5 .I spent half an hour writing the letter A. I wrote the letter half an hour ago B. Half an hour ago was a short time for me to write the letter C. It took me half an hour to write the letter D. I should write the letter in half an hour II. Finish the second sentence in such a way that it means exactly the same as the first one. ( 1 point) 1. I’m sorry I don’t have my teacher’s address. => I wish …………………………………………………………………………… 2. We couldn’t go on a picnic because the weather was bad. => The weather was ……………………………………………………………… 3. Julia started working for this company six years ago. => Julia has ……………………………………………………………………........ 4. You ought to wash this sweater in warm water. => This sweater ………………………………………………………………………………. 5. Why isn’t she taken to the cinema with them? => Why don’t ………………………………………………………………………………….