Fill in "can", " may", "have to", "must" or "need" . 1. We recycle old materials to save our planet. 2. you look after the stray animals today? — Yes, I . 3. You not buy this meat for the stray dogs: we have already bought it. 4. I help you? No, thank you. It's not necessary . 5. I take your pen? — Yes, please. 6. We improve the quality of the life in our city if we pick up litter and keep the city clean . We do it. 7. My friends are busy so I feed the stray animals today. 8. The homeless often work because they have no ID or address. 9. Everything is clear and you not go into details now. 10. All my friends have donated to charities. I don't have much money but I do the same. 11. Don't worry! I change a light bulb. 12. I not call the doctor again unless I feel worse.

Задание

Fill in "can", " may", "have to", "must" or "need" .

1. We ... recycle old materials to save our planet. 2. ... you look after the stray animals today? — Yes, I ... . 3. You ... not buy this meat for the stray dogs: we have already bought it. 4. ... I help you? No, thank you. It's not necessary . 5. ... I take your pen? — Yes, please. 6. We ... improve the quality of the life in our city if we pick up litter and keep the city clean . We ... do it. 7. My friends are busy so I ... feed the stray animals today. 8. The homeless often ... work because they have no ID or address. 9. Everything is clear and you ... not go into details now. 10. All my friends have donated to charities. I don't have much money but I ... do the same. 11. Don't worry! I ... change a light bulb. 12. I ... not call the doctor again unless I feel worse.

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