giúp
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**Exercise 2. Use the given words to complete the sentences.**

1. Air pollution / be/ really harmful/ our health/.
2. There/ be/ lot of/ fresh air/ the countryside/.
3. This/ help/ you/ be/ happy/ positive/.
4. Avoid/ eat/ much/ fast food/ and/ sugar/.
5. Here/ be/ some/ advice/ help/ you/ keep fit/.
6. My brother/ like/ cycle/ the park/.
7. We/ eat/ lots of/ garlic/ prevent/ flu/.
8. They/ not/ have/ stress/ the countryside/.