Correct Answer: A

Rationale: When a cat cowers, it means the cat is crouching down or trying to make itself look smaller in fear or apprehension of something, in this case, the Rottweiler. Hence, the word 'cower' accurately describes what the cat would do when faced with a Rottweiler entering the room. The other choices are incorrect: 'Engender' means to cause or give rise to, 'Enhance' means to improve or increase the quality or value of something, and 'Replicate' means to duplicate or reproduce something.

Correct Answer: B

Rationale: The correct answer is B: 'More than what is needed or usual.' Excess refers to an amount that surpasses what is required or typical. Choice A is incorrect because 'less than what is needed or usual' is the opposite of excess. Choice C is incorrect as 'equal to the amount needed' does not imply excess. Choice D is incorrect as 'below average' does not capture the essence of excess.

Correct Answer: A

Rationale: The correct answer is A: 'Incapacitating.' Debilitating means causing incapacity or weakness, making choice A the most appropriate. Choices B, C, and D are incorrect because they represent the opposite of what debilitating means. Weakening (choice B), Empowering (choice C), and Strengthening (choice D) all convey a sense of increasing strength or ability, which is the opposite of the meaning of debilitating.

Correct Answer: B

Rationale: The correct answer is 'She has completed the project.' The sentence uses the present perfect tense with 'has completed,' which is the correct form of the verb. Choice A is incorrect due to the subject-verb agreement error ('She' requires 'has' instead of 'have'). Choice C is incorrect as it changes the meaning by using the passive voice 'has been completed' instead of the active voice. Choice D is incorrect as 'complete' should be 'completed' to match the present perfect tense.

Correct Answer: B

Rationale: The correct answer is B: 'Incurable.' Incorrigible means something or someone that cannot be corrected or cured. It signifies a persistent behavior or trait that is unlikely to change. Choices A, C, and D are incorrect because incorrigible specifically denotes something that is unable to be corrected, not curable, chronic, or temporary.