The tone( speakers attitude)can be frightened or grim and the mood (emotional affect the text gives the readers) can be worried or tense.
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!
B. Say to himself or herself, “Is that really true?
If the octopus is inside one of the boxes, it doesn't matter what you ask if trying to find out which box the octopus is BEHIND
