9. leave, don't live
10. had, would buy
11. wouldn't have got, had remembered
12. would have, hadn't spent
13. travels, always spends
14. wouldn't do, hadn't revised
15. Would you have taken, had known
Ex4.
1. stoped, would fly
2. smoke, will/may object
3. Woudn't your parents be
4. hadn't failed
5. have finished
6. worked, could/would finish
7. would have passed
8. should practise
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