Question

unless you work hard,you will fail.(make it a compound sentence)

Answer 1

work hard or you will fail.

Answer 2

Answer:

Work hard or you will fail.

Explanation :

When dealing with more than two sentences with different clauses, they are referred to as compound sentences. Therefore to correctly punctuate such sentences, they should be joined together using conjunctions that are suitable in completing the sentences and still make it free of grammatical errors. Conjunctions are used as joining words such statements. For the given question, the correct conjunction is or which perfectly makes the sentence complete and with the same meaning.