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X và Y là 2 nguyên cùng 1 nhóm A thuộc 2 chu kì liên tiếp. Xác định vị trí X và Y biết tổng số hạt mang điện X và Y là 116
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III. ADJECTIVE CLAUSES Combine the following sentences using suitable relative pronouns ( who, whom, which, that, whose, where, when, why) 15. The bed was comfortable . I slept in it last night. ………………………………………………………………………………………………………… 16. Marie Curie was a French Physicist. Her discovery of radium is famous throughout the world. ………………………………………………………………………………………………………… 17. I don’t remember the day. I left school on that day. => . 18. She is the most intelligent woman. I’ve ever met this woman. …………………………………………………………………………………………………… 19. My brother came to see us. He is in the army. ………………………………………………………………………………………………………… 20. The strike at that factory is over now. It lasted three days ago. ………………………………………………………………………………………………………… 21.Professor Johnson is to visit the university next week. I have long admired him …………………………………………………………………………………..……… 22. Can you understand the question? He asked you the question last time. …………………………………………………………………………………..……… 23. Is that the girl? We saw her on T.V last night. …………………………………………………………………………………..……… 24. The farm produces milk. We visited it last Sunday. …………………………………………………………………………………..……… 25. At last he married the girl. He loved her. …………………………………………………………………………………..……… 26. The man is an engineer. We play with his daughter everyday. …………………………………………………………………………………..……… 27. He didn’t receive the letter. I sent him the letter last January. …………………………………………………………………………………..……… 28. He often tells me something about his village. He was born there. …………………………………………………………………………………..……… 29. The children like the funny stories. Their grandmother tells them those stories every evening. …………………………………………………………………………………..………

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