Answer: 1. Since Alison drank all the milk, she went to the store to buy another gallon.
2. The storm raged for 3 hours, flooding many homes.
Explanation: 1. Subordinating conjunction was used to combine an independent and dependent clauses. Common conjunctions such as, since; as; though; although; etc are used to combine clauses. Subordinating conjunctions signal the cause-and-effect relationship in a sentence.
2. A comma can be used to combine two dependent clauses. Dependent clauses are clauses that have both the subject and the verb but cannot stand on its own. Only use a comma at the end of the sentence for added emphasis.