When submitting a paper for publication in an academic journal, what is the best way to cite the sources?

Correct Answer: B

Rationale: The best way for an author to cite sources when submitting a paper for publication in an academic journal is to research and follow the citation style specified by that particular journal. This ensures that the paper meets the submission standards and requirements of the journal. Option A is incorrect because it suggests trying out different citation styles, which may not align with the journal's requirements. Option C is incorrect because it emphasizes the author's preference over adherence to journal guidelines. Option D is incorrect as it assumes the author's personal style should be used regardless of journal requirements.

Correct Answer: B

Rationale: The correct answer is B: 'Let's eat, Grandma!' The comma is correctly used to separate the direct address 'Grandma' from the rest of the sentence. In choice A, there should be a comma after 'eat' to separate the direct address. Choice C is missing an apostrophe in 'Lets,' and there should be a comma after 'eat' to separate the direct address. Choice D incorrectly places a comma after 'Lets,' and there should be a comma after 'eat' to separate the direct address.

Correct Answer: A

Rationale: The correct answer is B: 'John threw the ball.' Active voice sentences have the subject performing the action, which is the case in this sentence where 'John' is the subject performing the action 'threw.' Choices A, C, and D are in passive voice where the subject receives the action rather than performing it.

Correct Answer: B

Rationale: The correct answer is B: 'Before.' The prefix 'pre-' means 'before,' indicating something that comes before the main action or event. For example, in words like 'preview' or 'predict,' the prefix 'pre-' implies anticipation or happening before the complete action. Choices A, C, and D are incorrect. 'After' (Choice A) is the opposite of 'before,' 'During' (Choice C) implies something happening at the same time, not before, and 'Against' (Choice D) indicates opposition, which is unrelated to the prefix 'pre-.' Therefore, the answer is 'Before.'

Correct Answer: C

Rationale: The given sentence, 'If it rains tomorrow, the picnic will be canceled,' is a complex sentence. It consists of an independent clause 'the picnic will be canceled' and a dependent clause 'If it rains tomorrow.' A simple sentence contains just one independent clause, a compound sentence contains two or more independent clauses, and a compound-complex sentence contains two or more independent clauses and at least one dependent clause. Therefore, choices A, B, and D are incorrect for this sentence.