Correct Answer: D

Rationale: The correct answer is 'which' as it correctly introduces a defining clause describing the style of hair Tracey wore. 'Which' is used to provide additional information about the noun 'French braid' and helps specify the particular style among others. 'Among' (choice A) is incorrect as it is used to show a relation of one thing to many others. 'It' (choice B) is incorrect as it does not serve as a relative pronoun to introduce a clause. 'That' (choice C) is incorrect as it is not the most suitable relative pronoun to introduce a non-restrictive clause in this context.

Correct Answer: B

Rationale: 'Badly' is the correct adverb to modify 'danced'. In this context, 'badly' is used to describe the manner in which the student danced, indicating that her dancing performance was not good, contrasting with her singing ability. 'Poorly' (choice C) is also an adverb, but 'badly' is more commonly used in this context to describe performance in an artistic or skill-based activity. Choice D, 'poorer,' is incorrect as it is the comparative form of 'poor,' not the appropriate adverb to describe how she danced.

Correct Answer: A

Rationale: The correct answer is 'dog, who had.' The phrase 'dog, who had' correctly indicates that Janet called her dog to run after a squirrel. In this case, 'who had' provides additional information about the dog, making the sentence grammatically accurate. Choices B, C, and D are incorrect because they do not use the appropriate relative pronoun 'who' for referring to animals.

Correct Answer: A

Rationale: The correct answer is A: 'the students watched the snow begin to fall.' In this sentence, the structure is correct with the subject 'the students' followed by the verb 'watched' and the object 'the snow begin to fall' in a grammatically appropriate manner. Choices B, C, and D have issues with verb tense agreement and sentence structure, making them grammatically incorrect. Choice B changes the active voice to passive, choice C lacks a verb for the subject 'snow,' and choice D does not complete the action initiated in the introductory participial phrase.

Correct Answer: B

Rationale: 'Spent' is the correct past tense of 'spend.' In this sentence, the action of spending time in the studio already happened while Steve was an apprentice, requiring the past tense 'spent.' 'Spends' is present tense, 'spended' is not a valid word, and 'spend' is present tense without matching the past context of the sentence.