Correct Answer: A

Rationale: The correct answer is 'A: is.' In the sentence, 'Our family is staying home for the holidays this year,' the singular collective noun 'family' requires a singular verb to maintain subject-verb agreement. 'Is' is the correct singular form of the verb to match with 'family.' Choice B 'be' is incorrect as it is the base form of the verb and does not agree with the subject 'family.' Choice C 'am' is incorrect as it is a first-person singular form of the verb 'to be,' which does not align with the subject 'family.' Choice D 'are' is incorrect as it is a plural form of the verb and does not match with the singular subject 'family.'

Correct Answer: A

Rationale: The correct answer is 'A: is.' In the sentence, 'Our family is staying home for the holidays this year,' the singular collective noun 'family' requires a singular verb to maintain subject-verb agreement. 'Is' is the correct singular form of the verb to match with 'family.' Choice B 'be' is incorrect as it is the base form of the verb and does not agree with the subject 'family.' Choice C 'am' is incorrect as it is a first-person singular form of the verb 'to be,' which does not align with the subject 'family.' Choice D 'are' is incorrect as it is a plural form of the verb and does not match with the singular subject 'family.'

Correct Answer: D

Rationale: The correct answer is D because it introduces the historical origin of yoga, which is the main focus of the paragraph. This sentence sets the context by providing a foundational understanding of where and when yoga originated. Choice A talks about the mention of yoga in the Vedas but does not provide information about the historical development of yoga itself. Choice B discusses the travel of yoga masters to the West, which is a later development in the history of yoga and not the starting point. Choice C refers to a shift in yoga philosophy without directly addressing its origins, making it less suitable as a topic sentence compared to choice D.

Correct Answer: A

Rationale: The correct answer is sentence A: 'The guests had a wonderful time at the party.' This sentence uses formal language suitable for most written communication. Choice B uses informal language with the word 'awesome,' which is more casual and conversational. Choice C, 'The partygoers wanted to hang out all night,' while not as informal as choice B, is still less formal than choice A. Choice D, 'The partiers were up for something more,' uses slang ('partiers') and casual language ('up for something more'), making it the least formal option among the choices.

Correct Answer: B

Rationale: The correct answer is to find out from the instructor what citation style to use. In academic writing, it is essential to follow the specific guidelines provided by the instructor to ensure consistency and correctness. Option A is not recommended as different disciplines may have different citation requirements. Option C is not advisable as citation styles can vary between different fields even within the broader category of science. Option D is incorrect as using multiple citation styles in the same paper can lead to confusion and lack of clarity.