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cho các chất sau: CIH3NCH2COOH, H2NCH(CH3)CONHCH2COOH, (HOOCCH2NH3)2SO4, CIH3N CH2CONHCH2COOH. số chất trong dãy khi tác dụng với dung dịch NaOH dư, đun nóng, thu được dung dịch chứa 2 muối là ?
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16. The children ________________ (play) happily in the park when I found them. 17. __________1_________ (Bill/ arrive) home yet? ~ Yes. He ___________ (arrive) three hours ago. 18. I ________________ (like) cowboy movie since I ____________ (be) a child. 19. I’ll come and see you before I _____________ (leave) for the United States. 20. We ________________ (have) four tests so far this semester. 21. As soon as Martina saw the fire, she _______________ (phone) the fire department. 22. I saw Lisa at the station when I _______________ (go) to work this morning but she _____________ (not/ see) me. 23. I _______________ (know) Jim Bates since he __________ (be) ten years old. 24. He will take a dog out for a walk as soon as he ____________ (finish) his work. 25. We ______________ (not see) Marta recently. The last time we ___________ (meet) her was in April. 26. Kathy usually ______________ (sit) in the front row during class, but today she ____________ (sit) in the last row. 27. Look at the black clouds! It ____________________. (rain) 28. I hope you ____________________ (be) able to take part in the trip to the seaside with us. 29.Please close the windows. The rain _________________. (come) 30. The earth _______________ (circle) the sun once every 365 days.

1. The students are reading some books are on disasters. A. who B. whom C. which D. whose 2. The children are playing in the yard are Mr. Brown‟ s nephews. A. whom B. that C. which D. where 3. They are reading the newspapers have just been published A. who B. which C. when D. whom 4. Hoa and her dog are standing over there go to the park. A. that B. who C. whom D. which 5. My father will fly to Ha Noi, is the capital city of Viet Nam. A. who B. whom C. which D. where 6. My classmates dislike postcards show rough sea and cloud sky A. who B. which C. where D. when 7. Neil Armstrong, was the first man walking on the moon, is an American. A. who B. which C. whom D. that 8. They called their friends, have lived in the city for a long time A. who B. which C. whose D. that 9. They ran out of the house almost collapsed after the strong wind A. who B. whose C. which D. where 10. She often plays the music was composed by Chopin. A. who B. that C. which D. B&C are correct 1. Sunday is the day..........I go to Water park with my kids. A. when B. where C. why D. which 2. That was the reason..........he didn't marry her. A. when B. where C. why D. which 3. An architect is someone..........deigns buildings. A. who B. whom C. which D. whose 4. The boy to..........I lent my money is poor. A. who B. whom C. which D. that 5. The land and the people..........I have met are nice. A. who B. whom C. which D. that 7. This is the place..........the battle took place ten years ago. A. which B. in where C. where D. from where 8. Sunday is the day..........which we usually go fishing. A. during B. at C. in D. on 9. This is the last time..........I speak to you. A. of which B. whose C. that D. which 10. He talked about the books and the authors..........interested him. A. who B. that C. which D. whom 11. Bondi is the beautiful beach..........I used to sunbathe. A. when B. where C. which D. why 12. Dec 26th, 05 was the day..........the terrible tsunami happened. A. when B. where C. which D. why 13. The woman..........lives next my door is doctor. A. who B. whom C. which D. whose 14. The boy..........Mary likes is my son. A. who B. whom C. which D. whose 15. The boy..........eyes are brown is my son. A. who B. whom C. which D. whose 16. The table..........legs are broken should be repaired. A. who B. whom C. which D. whose 17. The town..........we are living is noisy and crowded A. where B. in where C. which D. at which 18. The year..........we came to live here was 1997 A. when B. which C. that D. in the time 19. The worker..........house is next to mine died this morning. A. whose B. whom C. which D. whose 20. The lady..........son went on a picnic with us last weekend is a teacher at our school. A. who B. whom C. whose D. that 23. He is the only friend..........I like. A. who B. whom C. that D. whose 24. I didn't get the job..........which I applied. A. in B. on C. at D. for 25. The man..........whom she is married has been married twice before. A. in B. on C. at D. to 26. I wasn't interested in the things..........which they were talking. A. in B. on C. at D. about 30. She is the most beautiful girl..........ever lived. A. who B. whom C. whose D. that 31. The decision was postponed,..........was exactly what he wanted. A. who B. whom C. which D. that 32. All the people..........have gone into the room are still young. A. who B. whom C. whose D. that 33. Jack has three brothers, all of..........are married. A. who B. whom C. which D. that 34. They gave us a lot of information, most of..........was useless. A. who B. whom C. which D. that

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