I. Choose the active or passive form of the verb in brackets for each sentence. 1. Deforestation (should stop / should be stopped ) right away. 2. Tho

I. Choose the active or passive form of the verb in brackets for each sentence.
1. Deforestation (should stop / should be stopped ) right away.
2. Thousands of trees (cut / are cut) down every day.
3. People ( are destroying/ are being destroyed) forests without thinking for the future generation.
4. This river (polluted / were polluted) by the factories located on its banks.
5. Scientists ( have searched / have been searched ) for alternative sources of energy for a long time.
6. Natural resources (will use/will be used) up in the next few decades.
7. We ( were taking/ were being taken) to the zoo by our teacher that day.
8. A cobra ( can kill/ can be killed) an adult with just its one bite.
9. Ecotourists ( usually present / are usually presented ) with the diversity of animals in the forest.
10. In my country, elephants ( have protected/ have been protected) very seriously.

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  1. 1. Deforestation (should stop / should be stopped ) right away.

    2. Thousands of trees (cut / are cut) down every day.

    3. People ( are destroying/ are being destroyed) forests without thinking for the future generation.

    4. This river (polluted / were polluted) by the factories located on its banks.

    5. Scientists ( have searched / have been searched ) for alternative sources of energy for a long time.

    6. Natural resources (will use/ will be used) up in the next few decades.

    7. We ( were taking/ were being taken) to the zoo by our teacher that day.

    8. A cobra ( can kill/ can be killed) an adult with just its one bite.

    9. Ecotourists ( usually present / are usually presented ) with the diversity of animals in the forest.

    10. In my country, elephants ( have protected/ have been protected) very seriously.

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  2. 1. should be stopeed 

    2. are cut

    3. are destroying

    4. were polluted

    5. have searched

    6. will be used

    7. were being taken

    8. can kill

    9. are usually presented

    10. have been protected

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