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Exercise 4: Tick ✓ the correct sentences and correct the wrong sentences.
1. He studied so badly that he couldn't pass the exam.
2. It is very cold. We can't bathe.
3. Would you be very kind and answer this letter by return?
4. The story was very funny. We couldn't stop laughing.
5. The floor wasn't strong. We couldn't dance on it.
6. There were so many exercises that I couldn't finish them in a short time.
7. He spoke so fast that we couldn't understand him.
8. The restaurant is so expensive that we can't eat in that restaurant.
9. The price of the house is very high. We can't buy it.
10. I am very unhappy, so I cannot go out with him.