Correct Answer: B

Rationale: The correct word should be 'coarse' instead of 'course' in this context. 'Coarse' means composed of relatively large parts or particles, which is the intended meaning in the sentence as it describes the type of flour used for the meatballs. On the other hand, 'course' means a route or direction taken, which does not fit the context here.

Correct Answer: C

Rationale: The correct answer is 'will be certified' because it correctly indicates the future tense of the action of certifying the students after they pass the exam. This phrase accurately conveys the timing of the certification process in relation to the completion of the exam. Choice A 'being certified' is incorrect as it does not specify the future tense, while choice B 'have been certified' is incorrect as it indicates a past action. Choice D 'are certifying' is incorrect as it suggests the certification is currently happening, which is not the intended meaning in the sentence.

Correct Answer: B

Rationale: The correct word should be 'coarse' instead of 'course' in this context. 'Coarse' means composed of relatively large parts or particles, which is the intended meaning in the sentence as it describes the type of flour used for the meatballs. On the other hand, 'course' means a route or direction taken, which does not fit the context here.

Correct Answer: C

Rationale: In the sentence, 'The nursing staff appreciate occasional thank-you cards,' the pronoun 'them' is the best word to substitute for 'nursing staff.' The word 'them' is a pronoun that refers to a group of people or things, which matches the plural form of 'nursing staff.' Therefore, 'them' is the correct choice in this context. Choice A, 'They,' could also refer to the nursing staff, but 'them' is more precise in this case. Choice B, 'It,' is singular and does not match the plural 'nursing staff.' Choice D, 'Us,' refers to the speaker and others, which is not appropriate in this context.

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.