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Charts 1 Circle the correct words to complete the conversation.
9.1-9.6
Elsa: I remember when I first started working at the animal preserve 40 years ago, one of my
favorite animals was a young elephant named Lucy. But one day, (1) she@isappeared
was disappeared, and she (2) never saw / was never seen again.

Paul: I remember Lucy. Then shortly after that, we (3) noticed / were noticed that every day
another animal was missing. We realized that some thieves (4) must have taken / must
have been taken them. Eventually, the thieves (5) caught / were caught by the police.

If I remember correctly, they (6) sent / got sent to jail for three years.
Elsa: That’s right. That was a harsh punishment at that time. I don’t think those thieves
expected (7) to punish / to get punished at all.

Paul: No, I don’t think they did. But it was a good thing, because more and more animals
(8) are saving / are being saved now. Since our departure, some of the animals
(9) have released / have been released back into the wild.

Elsa: That’s great news. It shows how much people (10) have learned / have been learned
since we started our work.

Charts 2 Rewrite the sentences in the passive where possible. Begin each sentence with the
Sa underlined word(s). Use the correct form of the verb. Use by + the agent when necessary.

1. We find bats throughout most of the world.

Bats are found throughout most of the world.

2. We can see bats all over the world.

3. In some parts of the world, bats live in caves.

4. Someone should stop the destruction of bat habitats.

5. A deadly disease has killed more than 5.7 million bats.

6. Organizations are investigating the spread of the disease.

7. The disease could threaten the survival of bats.

8. The government should have protected these endangered animals from this disease.

UNIT9 REVIEW THE GRAMMAR 261
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