Correct Answer: B

Rationale: The correct form to use in this sentence is the present participle 'taking.' The sentence should read, 'Before taking this medicine, consume a modest meal.' It is important to use the present participle form when talking about an action that occurs before another action. Choice A 'having taken' is incorrect as it suggests a completed action before consuming a meal. Choice C 'took' is in the past tense, not suitable for indicating an action that should happen before another. Choice D 'will take' is in the future tense, which does not fit the context of the sentence.

Correct Answer: B

Rationale: The correct answer is B: 'Comma.' In the sentence, a comma is needed to separate the independent clauses 'I will check the supply closet' and 'you can look in the laundry.' This comma helps to indicate a pause between the two related but separate actions that each person is taking. Choice A (Period) is incorrect because a period would create two separate sentences. Choice C (Colon) is incorrect as a colon is used to introduce a list or explanation. Choice D (Semicolon) is incorrect as a semicolon is used to connect two closely related independent clauses without a coordinating conjunction.

Correct Answer: D

Rationale: The word 'prefer' should be changed to 'prefers' to match the singular subject 'Louis.' The correct sentence should be: 'Fredericka always orders pancakes, but Louis prefers waffles.' Choice A 'always,' Choice B 'orders,' and Choice C 'but' are used correctly in the sentence and do not need any corrections.

Correct Answer: C

Rationale: The phrase 'never seen' in the sentence is not used correctly. The correct phrase should be 'never seen,' which is the past participle form of the verb 'see.' In this context, 'seen' is the correct past participle to use with 'had never.' Choice A, 'Until his trip,' is correct as it sets the time frame. Choice B, 'had never,' is also correct as it indicates the past perfect tense. Choice D, 'his ancestral home,' is also used correctly as it refers to the place Javier had never seen before.

Correct Answer: C

Rationale: In this sentence, the correct word to use is 'them.' The subject of the sentence is 'the intern and another person,' indicating more than one individual. Therefore, the pronoun 'them' is the appropriate choice to refer to multiple people engaged in folding the bandages. Choice A ('us') is incorrect as it refers to the speaker and the intern, not the intern and another person. Choice B ('he') is singular and does not match the plural subject of the sentence. Choice D ('her') is also singular and does not agree with the plural subject 'the intern and another person.'