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Ответ:

Ex.6

[ei]: take, strange, sail, away, lay, sailor, escape, native, snake

[ai]: island, tie, idea, climb, high, surprise, fly, diamond, time

Ex.7
1. countries

2. great poverty

3. island

4. to make the great fortune

5. huge

6. tied

7. valley

8. sparkling stones

9. the treasure

10. a whale