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45. Rewrite the sentences in the active.

1. Her excuse may not be believed by her parents.

...Her parents may not believe her excuse....

2. The painting has been valued by an expert.

3. He likes being given presents.

4. The bill must be paid immediately.

5. Hot water is provided by the hotel 24 hours a day.

6. Our newspaper is delivered by a boy every morning.

7. Her wedding dress will be made by a designer in Paris.

8. The meeting was attended by several important art critics.

9. Preparations are being made by the event organizers.

10. An interesting book has been published by the company.

46. Put the verbs in brackets into the correct passive or active tense.

Coffee 1) ...10 said... (say) to originate from Kaffa in Ethiopia and most species of coffee plant 2)...........................................(find) in the tropics of the Eastern Hemisphere. The species which 3).............................(think) to be the earliest coffee plant 4)................................................(ever/cultivate) by man is Coffea arabica. Today it 5).....................................(grow) mostly in Latin America. The coffee shrub 6)....................................(reach) a height of 8-10 metres and 7) ............................... (have) white scented flowers. It 8)....................................(produce) a red fruit which 9)..............................(call) a cherry. The cherry 10)....................................(contain) two seeds which 11)....................................(join) together. These seeds, which 12)........................................(also/know) as beans, 13).........................................(first/roast) and then they 14)................................(grind) to make coffee. The grounds 15)...........................................(then/process) in a variety of different ways. Sometimes they 16)..............................(filter) and sometimes they 17) ................................ (soak) in water to make the drink which is popular with so many people. Coffee is available as grounds or as instant coffee powder and 18) .............................. (drink) by one third of the world's population.

47. Rewrite the sentences in the passive.

1. I made this omelette with onions and cheese.

...This omelette was made with onions and cheese,..

2. Everyone considers her to be the best student in the class.

3. Mary wants someone to help her when she paints the house.

4. They will have built the new bridge by the end of ft year.

5. People ask Eve questions about her job all the time

6. The detective had collected all the information before he handed in his report.

7. Do people expect Jane to get a promotion this year?

8. Frank doesn't like people telling him what to do.

9. They washed the car with soapy water.

10. Who will make the speech tomorrow?

11. What did they decorate the streets with?

48. Put the verbs in brackets into the correct passive tense.

Do you think Mars 1) …...will be colonized……... (colonize) by humans one day? The planet Mars 2) ......................................................(know) as 'the red planet'. The soil there is red and its surface 3)................................. (cover) in volcanoes. Until recently, it 4)..............................(believe) that nothing

could live on Mars, but during a recent space mission, tests 5) ................................. (carry out), and now it 6)................................... (think) that life on Mars might be possible one day. During the space mission, special equipment 7) ............................................................ (use) to examine the planet. No form of life 8)................................ (find) yet, and so far, the planet 9)....................................(consider) unsuitable for inhabitation. However, we 10).................................................... (tell) by scientists that, by 2020, humans

11).............................(send) to Mars, and that one day, special cities12) .............................. (build) so that we can live there. It 13) ........................... (hope) that by 2150, Mars will be a wonderful place to live. If a colony 14)......................(build) on Mars, would you like to live there?

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