Answer:
The third sentence is correct on Sentence 2
Explanation:
Click on number 3
Explanation:
4. we had better not stay out late
5. I ought to have a ticket before I get on the bus
The option with the commas is the best written sentence
The second one—I gave the dog a bath because he was filthy. There needs to be a connecting word between ‘I gave my dog a bath’ and her was filthy. This are both independent clauses, so a conjunction is needed.