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EX2:
7. My coat must have been stolen (must steal). It's no longer here!
8. Pizza and soft drinks are being given away (be giving away) in the student center right now
9. Foods need to be bought (need to buy) for the rest of the week...
10. The printer must have been fixed (must fix) because it's working fine now
EX3: Tìm lỗi sai và sửa
1. Why did Danny, whose -> who totally unfit, decide to enter the marathon?
2. Miranda still has trauma from the tragic accident, that -> which took away her closest friend
3. The office furniture that was ordered last month have -> has just arrived, but we're not sure whether the manager like it
4. Mr. Smith whose -> Mr. Smith, whose car was stolen yesterday, is a professor
5. My uncle, was -> X a businessman, was ranked the weathiest of the country
6. She was the first woman in the Philippines to elect -> be elected as the president of the country
7. We should participate in the movements organizing -> organized to conserve the natural enviroment
8. Jack has won a jackpot prize, 10% of whom -> which was donated to flooded areas
9. All her children have graduated from university, that -> which is the reason for her to be proud
10. Mrs. Brown was the first owner his -> whose dog won 3 prizes in the same show.
Ex4: Tìm lỗi sai và sửa
1. On their trip last year, they help -> helped a lot of disadvantaged and handicapped children
2. At this time 4 years ago, we donate -> were donating food and clothes to low- income people in remote area
3. When I work -> worked with them for the first time, many of them couldn't read or write
4. He has just bought a pencil case to held -> hold his pens and pencils
5. British women overtake -> have overtaken British men in Internet usage since 2005
6. How did your life change -> has your life changed over the past ten years?
7. As planned, we -> are going to drive from our city to the sea
8. Look at the clounds. It is rain -> going to rain.
1. We haven't been to a concert for over a year
-> The last time we..........have been to a concert........................... was over a year
2. Your birthday party was the last time I really enjoy myself .
-> I............haven't enjoyed myself.......................................since your birthday party
3. It's nearly 20 years since my father saw his brother
-> My father......hasn't seen his brother....................................for nearly 20 years
4. James went to scotland last friday and is still there
-> James.....has gone to scotland.....................................to school since Friday
5. When did you learn to drive?
-> How long is it...........since you have learned...................................to drive?
6. The last time I went swimming was when we were in Spain
->I haven't.....gone swimming since......................................we were in Spain
7. You haven't tidied this rooms for weeks
-> It's weeks.......since you have tidied.............................this room
8. We started looking for a flat 2 months ago and we're still looking
-> We......have looked for.........................................a flat for 2 months
9. I haven't been to a night club before
-> This is.......the first time i have been to...........................a night club
10. When she heart the results, Mary began to feel more confident
-> Since.........mary heard the results, she has felt...........................................more confident
Section III: Choose one of the words below to fill in each blank in the following passage (không đánh số)
development / employed / civilization / supplies / oldest / trades / used / plants / increased / medicines / almost / therefore / that / which / By / could
Agriculture is the world’s most important industry. It provides us with almost (1) all our food. It also supplies (2) materials for two other basic human needs – clothing and shelter. In addition, agriculture provides materials used (3) in making many industrial products such as paints and medicines (4). About half the world’s workers are employed (5) in agriculture – far more than in any other industry.
Agriculture is one of the world’s oldest (6) industries. It began about 10,000 years ago in the Middle East . By (7) that time, certain Middle Eastern tribes had discovered how to grow plants (8) from seeds and how to raise animals in captivity. Having mastered these skills, they could (9) begin to practise agriculture.
Before the development (10) of agriculture, people got all their food my gathering wild plants, hunting, and fishing. They had to search for food continually, which (11) left them little time for other activities. But as agriculture developed, and farm output increased (12), fewer people were needed to produce food. The non-farmers could then develop the arts, crafts, trades (13), and other activities of civilized-life. Agriculture therefore (14) not only greatly affected food supply but also made civilization (15) possible.
C