The answer is A. Mercedes threw Andrea, Mercedes' best friend, a surprise party last night. This choice uses an appositive ("Andrea, Mercedes' best friend,") to combine the two sentences. An appositive is a phrase separated from the rest of the sentence by commas that describes something (in this case Andrea).
Choices B and C are incorrect because the uses of the words "but" and "when" to combine the sentences do not make logical sense. Choice D is incorrect because it uses a comma to combine the sentences without a conjunction, creating a run-on sentence.
Hope this helps!
The following sentence is calling for: B. Active listening. As a general rule you don't skip review for a big test that could dramatically sway your grade in either a positive or negative direction and course. I hope that answers your question.
In what condition did your friend find you when he visited your house?
Answer:
C. By explaining how the Dinomatron toy is different from last year's popular toy.
Explanation:
The author would best respond to the counterclaim that Dinomatron is made by the same company that created a holiday toy shortage the previous year by explaining how the Dinomatron toy is different from last year's popular toy. The author's counterclaim will show that there Dimantron is unique and different and could not compared to the previous year's popular toy. Dinomatron brand of toys has distinguishing features that makes it unique from others.