Correct Answer: B

Rationale: The word 'ambiguous' implies having multiple interpretations or uncertainty, which aligns closely with 'vague,' the correct answer. 'Vague' denotes a lack of clarity or definiteness, making it the most appropriate synonym in this context. 'Precise' (
Choice
A) is the opposite of ambiguous, indicating exactness and clarity, so it is not the best choice. 'Definite' (
Choice
C) also contrasts with ambiguous as it suggests clear and certain meaning. 'Straightforward' (
Choice
D) implies directness and simplicity, which does not capture the essence of ambiguity.

Correct Answer: C

Rationale: The correct answer is C. The word 'circumstance' is misspelled in the given choices. 'Accommodate,' 'acquiesce,' and 'indelible' are spelled correctly. It is important to pay attention to the spelling of words to ensure clear and accurate communication. 'Circumstance' is a common word, but in this context, it is intentionally misspelled to test your attention to detail.

Correct Answer: C

Rationale: In the sentence 'I was disappointed by the outcome,' 'disappointed' is used to describe the subject 'I,' indicating its quality. This function classifies 'disappointed' as an adjective. Adjectives modify nouns or pronouns by giving more information about their attributes.
Therefore, the correct answer is 'Adjective.'

The other choices are incorrect because:
- 'Verb' refers to an action word or a state of being, which 'disappointed' is not performing in this sentence.
- 'Noun' represents a person, place, thing, or idea, and 'disappointed' does not serve this function in the given sentence.
- 'Adverb' modifies verbs, adjectives, or other adverbs, but 'disappointed' is not modifying any of these in the sentence provided.

Correct Answer: B

Rationale: The word 'growing' in the sentence 'He felt a growing sense of unease' is functioning as an adjective. It describes the sense of unease, indicating a characteristic of the sense rather than an action (verb), a person, place, thing, or idea (noun), or modifying a verb, an adjective, or another adverb (adverb).
Therefore, 'growing' is an adjective in this context.

Correct Answer: B

Rationale: The past tense of the verb 'discover' is 'discovered.' In this case, the scientist already found a new species of butterfly, indicating a past action. 'Discovered' is the correct past tense form of 'discover.' The other options do not represent the past tense form of the verb. 'Discovers' is present tense, 'discovering' is present participle, and 'discovery' is a noun, not a verb tense.