Correct Answer: D

Rationale: Sentence D is the correct choice as it combines the sentences logically and clearly, showing cause and effect. It effectively connects the reason for Jesse's worry (the cold and wet day) with his training for the marathon. Choice A lacks a conjunction before 'Jesse was worried,' making it less clear. Choice B changes the sequence of events and weakens the cause-effect relationship. Choice C incorrectly places the reason for worry after the effect, leading to confusion in the sentence structure.

Correct Answer: C

Rationale: The correct answer is C. A citation is necessary when using someone else's work, such as song lyrics, to support an argument in academic writing. In options A, B, and D, there is no need for a citation. Option A involves the professor teaching her own work, so no external citation is required. Option B refers to an original work by the speaker, which does not require citation. Option D mentions a well-known and accepted fact, which generally does not need a citation in academic writing.

Correct Answer: C

Rationale: The correct answer is 'C: imitate.' In the sentence, it is explicitly stated that Felicia would often imitate her big sister, which directly relates to the meaning of 'emulate' as to copy or imitate someone else. 'Tried' (choice A) does not provide a direct connection to the definition of 'emulate.' 'Often' (choice B) and 'way' (choice D) are not directly associated with the act of imitating or copying, making them less relevant context clues for defining 'emulate.'

Correct Answer: B

Rationale: The correct answer is B: 'It's a beautiful day outside.' 'It's' is the contraction for 'it is.' Choice A is incorrect as it should be 'It's' instead of 'Its.' Choice C is incorrect as the apostrophe should come before the 's' in the contraction. Choice D is incorrect as the use of 'is'' is grammatically incorrect.

Correct Answer: B

Rationale: The correct answer is B: 'The tests were graded by the teacher.' This sentence is an example of passive voice, where the subject receives the action. In passive voice construction, the focus is on the receiver of the action rather than the doer. Choices A, C, and D are not in passive voice. Choice A 'The teacher graded the tests' is in active voice where the subject (teacher) performs the action. Choice C 'The students took the test' is also in active voice with the subject (students) carrying out the action. Choice D 'The test was difficult' is in passive voice but does not exemplify the subject receiving an action performed by an agent, which is a defining characteristic of passive voice.