Rewrite the following sentences

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12.Rewrite the following sentences
1. Study hard and you will pass the exam.
If....
2. Save some money or you won't able to buy the house.
If...
3. Be good or your parents will be very unhappy.
If.. .
4. Do it carefully or you'll feel sorry afterwards.
If.. .
....
5. Ask him first and he will offer to help.
If... .
6. Be calm or you'll make a wrong decision.
If...
7. Be careful or you’ll cut yourself with that knife.
If ...
8. Recycle and we will save natural resources.
If we ...
9. Hurry up or you will be late for work.
If you don't ...