Select the word that makes the following sentence grammatically correct. The girls have apparently ___________ curfew at least twice this week.

Correct Answer: D

Rationale: The correct answer is 'D: broken.' In this sentence, the word 'broken' is the past participle form of the verb 'break' and is needed to complete the present perfect tense. The correct sentence should be 'The girls have apparently broken curfew at least twice this week.' Choices A, B, and C do not fit grammatically in the sentence because 'broke' is the simple past tense, 'break' is the base form, and 'breaking' is the present participle, whereas the sentence requires the past participle 'broken' for the present perfect tense.

Correct Answer: C

Rationale: The correct answer is C: 'will be delighted.' In this context, the sentence is expressing a future possibility of graduating early, so the phrase 'will be delighted' in the future tense is the most appropriate choice to match the context. Choices A, B, and D are incorrect because they do not convey the future tense needed in this sentence. Choice A ('are delighted') is in the present tense, choice B ('were delighted') is in the past tense, and choice D ('will have been delighted') uses a more complex future perfect tense which is not necessary in this context.

Correct Answer: B

Rationale: The correct phrase to use with 'surprised' in this sentence is 'to learn.' In this context, 'to learn' functions as an infinitive to indicate the purpose or reason for the surprise. 'Learning' (Choice A) is incorrect as it doesn't serve as an infinitive in this sentence. 'Of learning' (Choice C) is incorrect as it doesn't provide the correct structure needed in the sentence. 'Have learned' (Choice D) is incorrect because the verb tense does not match the context of the sentence.

Correct Answer: C

Rationale: The word 'otherwise' is used to indicate that although the patients are resting comfortably, under different circumstances, bed checks should still be done every half hour. This maintains the correct logic and flow of the sentence, making it grammatically correct. Choice A, 'despite,' would imply a contrasting situation that is not the intended meaning in this context. Choice B, 'however,' also implies a contrast rather than the intended conditional relationship. Choice D, 'afterward,' indicates a time sequence that does not fit the context of the sentence.

Correct Answer: C

Rationale: In the given sentence, the word 'effect' is used incorrectly. In this context, the word 'affect' should be used instead of 'effect.' 'Affect' is a verb that means to influence or have an impact on something, while 'effect' is a noun that represents the result or outcome of an action. Therefore, to convey the intended meaning that her mentor's advice was bound to influence or impact her final decision, the correct word should be 'affect,' not 'effect.' The other options ('mentor's,' 'advice,' 'decision') are used appropriately in the sentence and do not contain any errors.

Correct Answer: C

Rationale: The word 'complements' is not spelled correctly in the context of the sentence. The correct spelling should be 'complements,' which means 'enhances or goes well with.' 'Compliments' in this context would refer to expressions of praise or admiration. The other choices ('bride's,' 'stationery,' 'decor') are correctly spelled and fit the context of the sentence.

Correct Answer: B

Rationale: The correct answer is 'itself.' The sentence is referring to the centrifuge, which is an object, not a person. Therefore, the word 'itself' is used to indicate that the centrifuge cannot run on its own; it requires constant attention. Choices A, C, and D are incorrect because they refer to a person or people, which is not suitable in the context of the sentence.

Correct Answer: C

Rationale: In the context of the sentence, the word 'then' is used incorrectly. The correct word that should be used is 'than,' which is used to make comparisons. The sentence should read, 'Nothing can be more delightful than a late-night swim in the reservoir.' The other choices 'Nothing,' 'delightful,' and 'reservoir' are spelled correctly and are contextually appropriate in the sentence.

Correct Answer: A

Rationale: The phrase 'Having completed' is not used correctly in the sentence. The correct form should be 'Having completed' to show that the action of completing the coursework has already been done. The use of 'complete' is incorrect as it should be 'completed' to maintain the correct verb form in the past participle. Choice B, 'was required,' is used correctly as it is in the passive voice and fits the sentence structure. Choice C, 'now prepares,' is also correct as it shows the current action of Jorge preparing for exam week. Choice D, 'prepared for,' is not the phrase in question and is used correctly in the sentence to indicate the action Jorge took in the past to get ready for exam week.