Rewrite the following sentences using the words given

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Exercise 5: Rewrite the following sentences using the words given.
1. If he puts more effort into his work, I'll give him a bonus. (condition)
2. If you don't change, you will have a lot of problems in life. (unless)
3. If we have enough rainfall this spring, our crops will be as good as last
year's. (provided)
4. The kids will play with dangerous things if you don't put them in the
safe place. (otherwise)