Correct Answer: C

Rationale: The correct answer is 'C: Hold fast.' ADHERE means to stay firmly attached or stick to something. 'Remain intact' (A) implies staying whole or undamaged, 'Loosen' (B) means to make less tight or firm, and 'Position next to' (D) refers to being placed adjacent to something, which do not accurately capture the meaning of ADHERE.

Correct Answer: B

Rationale: Indigent means impoverished or in need of financial assistance. In the context of the question, the hospital is willing to treat patients who are unable to afford medical care, indicating that indigent refers to those who are impoverished or lacking financial resources. Choice A, 'Wealthy,' is incorrect as indigent is the opposite of wealthy. Choice C, 'Educated,' is incorrect as being indigent is related to financial status, not education. Choice D, 'Healthy,' is incorrect as indigent does not refer to one's health status but rather their financial situation.

Correct Answer: B

Rationale: The correct answer is 'B: Gelatinous.' Viscous substances have a thick and sticky consistency, similar to the properties of gelatin. 'Watery' and 'fluid' are incorrect as they are opposite in meaning to viscous, which implies thickness and stickiness. 'Dry' is also incorrect as it does not capture the characteristic of being thick and sticky associated with viscosity.

Correct Answer: B

Rationale: The word 'adroit' means skillful or proficient. A surgeon who is adroit would be highly skilled and proficient in their work. Therefore, the most appropriate description for a surgeon who is adroit is 'skillful.' Choices A, C, and D are incorrect because they do not reflect the positive attribute associated with being adroit.

Correct Answer: B

Rationale: The correct answer is B: 'envelope.' The mail carrier typically delivers envelopes containing mail to every mailbox on the block. Envelopes are commonly used to protect and contain letters, making them the most suitable choice in this context. Choices A, C, and D are incorrect because while the mail carrier may deliver letters, packages, or documents, the most common item placed in mailboxes is an envelope containing mail.