Correct Answer: B

Rationale: The correct answer is B: 'The cat slept on the mat; she purred softly.' This sentence is a run-on because it contains two independent clauses ('The cat slept on the mat' and 'she purred softly') without proper punctuation. Choice A is incorrect as it is a compound sentence with a coordinating conjunction 'and' joining two independent clauses. Choice C is also incorrect as it is a compound sentence connected by a coordinating conjunction 'so.' Choice D is not a run-on sentence; it is a compound sentence with a coordinating conjunction 'or' joining two independent clauses.

Correct Answer: D

Rationale: In the sentence 'I asked a colleague to bring it to you,' the pronoun 'whose' does not fit grammatically. The pronoun 'whose' is used to indicate possession or belonging to someone, which is not relevant in this context. The other pronouns 'my,' 'our,' and 'your' are all appropriate to use in this sentence based on the context of the sentence. Therefore, 'whose' is the correct answer as it does not work in the given sentence.

Correct Answer: D

Rationale: In the given sentence, the words that should be capitalized are 'She,' 'do,' and 'Indian.' 'She' needs to be capitalized as it is the pronoun referring to a person, 'do' should be capitalized as it is the beginning of a question, and 'Indian' should be capitalized as it refers to a specific nationality or culture. Choice A is incorrect as 'do' is missing. Choice B is incorrect as 'Indian' is not capitalized. Choice C is incorrect as 'Indian' is not capitalized. Therefore, the correct answer is D.

Correct Answer: A

Rationale: The term 'monochromatic' refers to something that has only one color. Choice A, 'having one color,' is the correct description for monochromatic. Choices B, C, and D are incorrect as 'monochromatic' does not mean 'having many parts,' 'having a lot of time,' or 'having too much heat.' Monochromatic specifically conveys the idea of consisting of or using only one color, making Choice A the correct answer.

Correct Answer: A

Rationale: The correct answer is 'tele,' which means far. This root word is commonly found in words like 'telephone' and 'television,' where 'tele' indicates a distance or far-reaching transmission. 'Trans' (choice B) means across or beyond, not specifically far. 'Post' (choice C) means after or later, and 'ante' (choice D) means before or prior, neither of which conveys the meaning of far.