If you go to the market, please pick up some beef, carrots, and celery, and I will make some of that delicious stew we had last week. Which comma should be removed in the sentence above?

Correct Answer: D

Rationale: The comma after 'delicious' is unnecessary as it separates the adjective 'delicious' from the noun 'stew'. In this case, 'delicious' is describing the type of stew, so the comma should be removed to maintain correct sentence structure. The other commas in the sentence are correctly used to separate items in a list and after introductory phrases, making them necessary for clarity and grammatical correctness.

Correct Answer: D

Rationale: Sentence D is a compound-complex sentence because it contains two independent clauses ('Even though the puppy was much smaller than his mother' and 'his eyes were dark brown and shiny just like hers') and one dependent clause ('and his ears were long and floppy, too'). Choices A, B, and C do not meet the criteria for a compound-complex sentence as they lack a combination of independent and dependent clauses.

Correct Answer: D

Rationale: The correct answer is 'D' - 'although.' This transition word is suitable in the context as it indicates a contrast between the excitement of looking forward to the picnic and the worry about rain. 'After all' (choice A) implies a conclusion or reasoning, which doesn't fit the contrast in the sentence. 'Likewise' (choice B) suggests similarity or agreement, which is opposite to the intended contrast. 'In other words' (choice C) signals clarification or providing more details, which is not needed here. Therefore, 'although' is the best choice to convey the contrast between anticipation and concern.

Correct Answer: A

Rationale: The correct answer is A: Ambiguous word choice. In this sentence, the word 'friendly' is ambiguous and does not clearly convey the intended meaning. The context of the sentence suggests that 'friendly' is used inappropriately to describe a day, making the sentence unclear. Choices B, C, and D are incorrect because the issue in the sentence does not relate to transition words, tense disagreement, or an incomplete sentence.

Correct Answer: D

Rationale: The correct answer is D. The passage's descriptive and narrative style, focusing on character and setting details, suggests that the writer is an author of literature. Choice A is incorrect because there is no indication of a business environment or professional context in the passage. Choice B is incorrect as the passage does not align with the technical or formal language typical of scientific journals. Choice C is incorrect as the passage does not reflect the style or content common in student papers, which are usually more structured and formal.