The student studies diligently for her upcoming exam. Which word is the plural form of 'study'?

Correct Answer: C

Rationale: In this context, 'study' is a verb, not a noun. 'Studied' is the past tense form of the verb 'study.' The plural form of a verb does not exist in the same way as it does for nouns. 'Studied' is the correct form for the past tense of 'study,' not a plural form. 'Studies' (choice A) is the third-person singular present tense form of 'study,' 'studying' (choice B) is the present participle form, and 'studier' (choice D) is not a correct form related to the verb 'study.' Therefore, 'studied' is the most appropriate choice here.

Correct Answer: C

Rationale: The correct answer is 'C: enthusiasm.' The noun form of the adjective 'enthusiastic' is 'enthusiasm.' Nouns are often formed from adjectives by changing the suffix; in this case, '-ic' in 'enthusiastic' changes to '-m' in 'enthusiasm.' 'Entusiastic' is an adjective and does not function as a noun. 'Enthusiastically' is an adverb as it describes how something is done, not a noun. 'Enthuse' is a verb and does not represent the noun form of 'enthusiastic.' It is important to understand the relationships between different parts of speech when analyzing word forms.

Correct Answer: B

Rationale: The correct answer is 'B' because in the present tense, the third-person singular form of the verb 'paint' is 'paints.' When conjugating verbs, it is essential to match the verb form with the subject. 'Paints' is the correct form for the third-person singular subject 'artist' in this sentence. Choices 'A,' 'C,' and 'D' are incorrect. 'A' is in the past tense, 'C' is a gerund form, and 'D' is a noun, not a verb form, which does not match the tense and subject in the sentence.

Correct Answer: B

Rationale: The correct answer is 'B' - 'the guests chatted and enjoyed the music.' An independent clause expresses a complete thought and can stand alone as a sentence. It typically includes a subject and a verb and does not rely on another clause to form a complete sentence. In this sentence, 'the guests chatted and enjoyed the music' fits this criteria, making it the independent clause. Choices A and C are incorrect as they are dependent clauses, starting with a subordinating conjunction 'While,' which shows they cannot stand alone as complete sentences. Choice D is also incorrect as it lacks the word 'the' before 'enjoyed,' making it grammatically incomplete.

Correct Answer: B

Rationale: An interrogative sentence is a type of sentence that asks a question. In this case, choice B 'What is your favorite color?' is an interrogative sentence because it is asking a question and ends with a question mark. Choices A, C, and D are not interrogative sentences as they do not pose a question to elicit a response. Choice A is a declarative sentence, choice C is an imperative sentence, and choice D is also a declarative sentence.