< III >: Make the correct choice : 
1. You can hear BBC news ______ all over the world. 
a. shows B. announcements C. receipts  D. programs 
2. Television can make things _____ because it presents information is an effective way. 
a. memory B. memorial C. memorable  D. memorably 
3. Do you understand this _____? ‘200 WOMEN GIVEN WRONG DIAGNOSIS’ 
a. report B. headline C. news  D. advert 
4. Children often prefer looking at _____ to reading books. 
a. newspapers B. comics C. articles  D. commercials 
5. In Britain, there are some ‘terrestrial’ _____ on TV such as BBC1, BBC2, ITV1,... 
a. programs B. series C. channels  D. cables 
6. ‘Is the paper published every day ?’ ‘No, it _____ out once a week.’ 
a. turns B. goes C. produces  D. comes 
7. Editorial _____ in ‘The Guardian’ tended to support the government in this matter. 
a. comments B. complaints C. commands  D. comedies 
8. A _____ is a film with factual information, often about a problem in society. 
a. series B. soap opera C. documentary  D. drama 
9. There was a report _____ The Independent _____ this new law. 
a. on/ for B. in/ to C. in/ about  D. on/ in 
10. _____ is a system connecting millions of computer worldwide. 
a. The television B. The Internet C. The media  D. The phone 
11. The scheme allows students from many countries _____ with each other. 
a. communicate B. to communicate C. communicating  D. communicates 
12. _____ the storm warnings, we did not go out last night. 
a. Since B. In spite of C. Because of  D. The result 
13. This is the fifth time you _____ me the same question. 
a. ask B. asked C. are asking  D. have asked 
14. When I arrived at the party, Lucy _____ home. 
a. has already gone      b. had already gone C. already went  D. already was going 
15. English people spent 18 hours per week _____ TV. 
a. watching B. to watch C. watch  D. for watching 
16. I’ve lived in a small house near the coast _____ 1990. 
a. from B. since C. in  D. for 
17. She left home in 1993 and _____ since. 
a. hasn’t seen B. didn’t see C. hasn’t been seen  D. wasn’t seen 
18. It’s time we _____ this old car and bought a new one. 
a. will sell B. have sold C. had sold D. sold 
19. Since Mr. Hassan _____ president, both taxes and unemployment _____. 
a. has become/ increased B. became/ increased  
c. became/ have increased  D. has become have increased 
20. _____ all my warnings, he tried to fix the computer himself. 
a. Although B. In spite of C. Because  D. Instead of 
21. Some television programs _____. 
a. may make children to be violent. B. make children be violent. 
c. may make children violent.  D. make children being violent. 
22. I _____ away most of my old books when I moved house. 
a. threw B. have thrown C. had thrown  D. was throwing 
23. You _____ whisper. Nobody can hear us. 
a. needn’t to B. don’t have to C. mustn’t D. need to 
24. The children _____ to the Botanical Garden. 
a. were enjoyed taken  b. were enjoyed taking C. enjoyed taking  D. enjoyed being taken 
25. So far this week there _____ three burglaries in our street. 
a. are B. were C. have been  D. had been 

< III >: Make the correct choice : 
1. You can hear BBC news ______ all over the world. 
a. shows B. announcements C. receipts  D. programs 
2. Television can make things _____ because it presents information is an effective way. 
a. memory B. memorial C. memorable  D. memorably 
3. Do you understand this _____? ‘200 WOMEN GIVEN WRONG DIAGNOSIS’ 
a. report B. headline C. news  D. advert 
4. Children often prefer looking at _____ to reading books. 
a. newspapers B. comics C. articles  D. commercials 
5. In Britain, there are some ‘terrestrial’ _____ on TV such as BBC1, BBC2, ITV1,... 
a. programs B. series C. channels  D. cables 
6. ‘Is the paper published every day ?’ ‘No, it _____ out once a week.’ 
a. turns B. goes C. produces  D. comes 
7. Editorial _____ in ‘The Guardian’ tended to support the government in this matter. 
a. comments B. complaints C. commands  D. comedies 
8. A _____ is a film with factual information, often about a problem in society. 
a. series B. soap opera C. documentary  D. drama 
9. There was a report _____ The Independent _____ this new law. 
a. on/ for B. in/ to C. in/ about  D. on/ in 
10. _____ is a system connecting millions of computer worldwide. 
a. The television B. The Internet C. The media  D. The phone 
11. The scheme allows students from many countries _____ with each other. 
a. communicate B. to communicate C. communicating  D. communicates 
12. _____ the storm warnings, we did not go out last night. 
a. Since B. In spite of C. Because of  D. The result 
13. This is the fifth time you _____ me the same question. 
a. ask B. asked C. are asking  D. have asked 
14. When I arrived at the party, Lucy _____ home. 
a. has already gone      b. had already gone C. already went  D. already was going 
15. English people spent 18 hours per week _____ TV. 
a. watching B. to watch C. watch  D. for watching 
16. I’ve lived in a small house near the coast _____ 1990. 
a. from B. since C. in  D. for 
17. She left home in 1993 and _____ since. 
a. hasn’t seen B. didn’t see C. hasn’t been seen  D. wasn’t seen 
18. It’s time we _____ this old car and bought a new one. 
a. will sell B. have sold C. had sold D. sold 
19. Since Mr. Hassan _____ president, both taxes and unemployment _____. 
a. has become/ increased B. became/ increased  
c. became/ have increased  D. has become have increased 
20. _____ all my warnings, he tried to fix the computer himself. 
a. Although B. In spite of C. Because  D. Instead of 
21. Some television programs _____. 
a. may make children to be violent. B. make children be violent. 
c. may make children violent.  D. make children being violent. 
22. I _____ away most of my old books when I moved house. 
a. threw B. have thrown C. had thrown  D. was throwing 
23. You _____ whisper. Nobody can hear us. 
a. needn’t to B. don’t have to C. mustn’t D. need to 
24. The children _____ to the Botanical Garden. 
a. were enjoyed taken  b. were enjoyed taking C. enjoyed taking  D. enjoyed being taken 
25. So far this week there _____ three burglaries in our street. 
a. are B. were C. have been  D. had been 

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Trong tự nhiên kali có 2 đồng vị : 39 K chiếm 93,3% , 41 K chiếm 6,7% . NGUYÊN TỬ KHỐI TRUNG BÌNH CỦA KALI LÀ :

A.   39,5         B.    40,5          C.    39,0      D.39,134