I am not positive of your question but if you are asking what is the way to make your sentences differ from one another. Transitional verbs such as then, therefore, another argument, etc.
Answer: If its for Gradpoint and is the quiz for Sentence Combining and Sentence Variety, The answer is to divide sentence 2 into two or more sentences
Explanation: It is the most effective way to vary the sentence pattern of the passage they've given us
