A compound sentence can be converted into a simple sentence by
Combining two independent clauses of the compound sentence into a single clause.
Rewrite the sentence omitting the conjunction used in the compound sentence.
1. Compound: He got up and started studying.
Simple: Getting up, he started studying.
2. Compound: He must return the money, or he will be punished.
Simple: He must return the money to escape punishment.
3. Compound: A shark moust keep swimming or it will die.
Simple: A shark must keep swimming to stay alive.
4. Compound: Do a good job and you will be rewarded.
Simple:You will be rewarded for doing a good job.