. Use the right modal verbs. 1. If you want to be fit, you ... not eat cakes, but you certainly ... walk a lot.

2. Dolphins ... imitate words, laughter and even the tones of different voices.

3. Many pet owners think that their pets understand them, because animals ... easily feel anger and sorrow.

4. Dogs ... be easily trained due to their obedience and de- sire to please.

5. Before you bring a new cat or kitten home, you ... think carefully about potential dangers it ... meet with.

7. Every cat ... have its own sleeping place.

8. All kittens ... be vaccinated against feline enteritis and feline influenza.

9. You ... clean your pet's bed regularly.

10. Studies have shown that genetically modified products ... kill beneficial insects.

11. Giant pandas ... live for up to 20 years, and a big male ... weigh 150 kilos. Although very slow moving and peace- ful, the panda ... be dangerous when angry.

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