The professor explained the concept clearly. What is the past participle of the verb 'explain'?

Correct Answer: C

Rationale: The past participle of a verb is used to form various tenses and passive voice constructions. In this case, 'explained' is the correct past participle form of the verb 'explain'. The sentence structure indicates a completed action in the past, which aligns with the use of the past participle. Choice A, 'explains,' is the present tense form of the verb, not the past participle. Choice B, 'explaining,' is the present participle form of the verb, not the past participle. Choice D, 'explanation,' is a noun derived from the verb 'explain,' not the past participle form of the verb itself.

Correct Answer: D

Rationale: A compound-complex sentence consists of at least two independent clauses and at least one dependent clause. In option D, 'He enjoyed reading the book' is an independent clause, while 'because it was suspenseful' is a dependent clause, making it a compound-complex sentence. Choices A, B, and C do not meet the criteria for a compound-complex sentence as they either lack the required combination of independent and dependent clauses or do not contain multiple independent clauses.

Correct Answer: C

Rationale: In the sentence 'The red car parked in the driveway,' the subject is 'car' because it is the noun that is performing the action of parking. The subject is typically the main noun that the rest of the sentence revolves around. 'Driveway' is part of the prepositional phrase 'in the driveway.' 'Red' is an adjective describing the car, and 'the' is an article providing information about the car but not the main noun carrying out the action.

Correct Answer: C

Rationale: In the sentence 'She baked a delicious cake for the party,' the verb 'baked' is an action performed by the subject 'She.' The direct object is the recipient of the action, which in this case is 'cake.' It answers the question 'What did she bake?' making 'cake' the direct object in the sentence. Choice A 'for the party' is a prepositional phrase indicating the purpose, not the direct object. Choice B 'delicious' describes the cake but is not the direct object. Choice D 'baked' is the verb itself, not the direct object receiving the action.

Correct Answer: B

Rationale: The correct answer is 'B: Through the park.' A participial phrase acts as an adjective and is formed from a verb. In this sentence, 'Running through the park' describes 'she' and functions as an adjective modifying the subject. Choice A 'Running' is incorrect because it is just the present participle without additional context to form a phrase. Choice C 'She spotted' is incorrect as it is a subject and a verb, not a participial phrase. Choice D 'A squirrel' is incorrect as it is a noun phrase, not a participial phrase.