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II/

1. If I hadn't lost my passport, I wouldn't have had a lot of trouble now. 

2. Susan asked David where she had left her sunglasses. 

3. That old house has been sold at the end of the road. 

4. Yuri Gagarin was the first man to fly into space. 

5. If he had prepared the lessons, he wouldn't have failed the monthly test. 

6. He regretted not marrying her.

7. Had it not rained last night, I wouldn't have had a bad cold. 

8. Having done the housework, Mrs Brown sat down and poured herself a cup of tea. 

9. The players who were chosen to play for the national team are being prepared for a training course. 

10. People living near a volcano should be evacuated before its eruption.