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chuyển sang bị động
1,who has to teach us?
=>By whom...we have to be taught ?.........................
2,who shouln't eat these?
=>By whom........these shouldnt be eaten ?...................
1...BY WHOM..was the radio repared?
Chủ ngữ (ở câu CĐ) => by + tân ngữ (ở câu BĐ).
1. The test _______ in five minutes.
A. finishes B. must finish C. are finished D. must be finished
2. The housework _______finished by the time she came home.
A. was B. have C. had D. had been
3. Cloths bags should _______ used instead of plastic bags.
A. be B. to be C. been D. to been
4. All broken toys _______ away.
A. A. throw B. threw C. have thrown D. were thrown
5. Telephone _______introduced by Bell and Thomas Watson.
A. was B. is C. will be D. has been
6. Your breakfast _______up to your room tomorrow.
A. will take B. will be take C. will be taken D. will been taken
7. The man _______ as there was no medical help.
A. died B. have died C. was died D. had been died
8. A lot of people _______ by AIDS recently.
A. killed B. was killed C. have killed D. have been killed
9. When _______? - In 1928.
A. penicillin was discovered C. was penicillin discovered
B. did penicillin discover D. did penicillin discovered
10. _______ about the eight o’clock flight to Chicago?
A. Has been an announcement made C. Has an announcement been made
B. Has an announcement made D. Has been made an announcement
1. The test _______ in five minutes.
A. finishes B. must finish C. are finished D. must be finished
2. The housework _______finished by the time she came home.
A. was B. have C. had D. had been
3. Cloths bags should _______ used instead of plastic bags.
A. be B. to be C. been D. to been
4. All broken toys _______ away.
A. A. throw B. threw C. have thrown D. were thrown
5. Telephone _______introduced by Bell and Thomas Watson.
A. was B. is C. will be D. has been
6. Your breakfast _______up to your room tomorrow.
A. will take B. will be take C. will be taken D. will been taken
7. The man _______ as there was no medical help.
A. died B. have died C. was died D. had been died
8. A lot of people _______ by AIDS recently.
A. killed B. was killed C. have killed D. have been killed
9. When _______? - In 1928.
A. penicillin was discovered C. was penicillin discovered
B. did penicillin discover D. did penicillin discovered
10. _______ about the eight o’clock flight to Chicago?
A. Has been an announcement made C. Has an announcement been made
B. Has an announcement made D. Has been made an announcement
Điền must hoặc mustn't cho phù hợp
1. It's late at night. You _________MUSN'T_ make so much noise.
2. We ________MUST__ be home by 9 o'clock. The film starts at 9:15.
3. I ______MUST____ finish this essay today. It has to be handed in by tomorrow.
4. Passengers _____MUSTN'T_____ talk to the driver while the bus is in motion.
5. This is a dangerous tour. Children ______MUST____ be accompained by an adult.
6. We ______MUST____ do more exercise to stay fit.
7. We ______MUSTN'T____ give up when we are so close.
8. This was a nice evening. We ______MUST____ meet again.
Điền must hoặc mustn't cho phù hợp
1. It's late at night. You ___mustn't_______ make so much noise.
2. We __must_ be home by 9 o'clock. The film starts at 9:15.
3. I __must___ finish this essay today. It has to be handed in by tomorrow.
4. Passengers ___mustn't__ talk to the driver while the bus is in motion.
5. This is a dangerous tour. Children ___must__ be accompained by an adult.
6. We __must___ do more exercise to stay fit.
7. We __mustn't__ give up when we are so close.
8. This was a nice evening. We ___must_______ meet again.
Đáp án: A
Giải thích: Dựa vào câu: “Any writing or coloration of the paper must first be removed by deinking, which also removes fillers, clays, and fiber fragments”.
Dịch: Bất kỳ chữ viết hoặc màu nào của giấy trước tiên phải được loại bỏ bằng cách khử màu, nó cũng loại bỏ chất độn, đất sét và các mảnh sợi.
Our future house will be on the ocean. It will be suronded by tall trees and blue sea. But only have salt water in the ocean. We needs fresh water for (1) drinking and for growing food (2) on farms.
Ocean water is too salty (3) to drink. It is also too salty for watering plants. We must have the (4) ways to make fresh water from salty water. We should be (5) careful not to waste water.
(Vậy mới đúng)
Our future house will be on the ocean. It ll be surrounded by tall trees and blue sea. But we only have salt water in the ocean. We need fresh water for drinking and for growing food on the farms.
Ocean water is too salty to drink. It is also too salty for watering plants. We must have the ways to make fresh water from water. We should be careful not to waste water.
HOME Ex4: Fill in the blanks with "" or "".
1. You…… ………must… ………tidy up room.
2. It’s late. You …… ………mustn't…………make so much nosiy.
3. You…… ……mustn't………smoke.
4.We…… ………must…………be home by 9 o’clock. The film starts at 9:15. 5. You …… ………must… ……… do your homework.
6. I ……… ………must……… finish this essay today. It has to be handed in by tomorrow.
by whom must be taught us
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