Happily, zoos were
unwilling to cooperate
in a scheme that was potentially harmful to animal welfare
No error
Answer is Right!
Answer is Wrong!
The correct answer is: D. No error
The sentence is grammatically correct. The word “happily” is an adverb that modifies the verb “were.” The word “unwilling” is an adjective that modifies the noun “zoos.” The word “cooperate” is a verb that takes a direct object, which is the phrase “in a scheme that was potentially harmful to animal welfare.” The sentence is a complex sentence with two independent clauses, “Happily, zoos were unwilling to cooperate” and “in a scheme that was potentially harmful to animal welfare.” The two clauses are joined by the subordinating conjunction “in.”
The sentence is clear and easy to understand. It conveys the message that zoos were unwilling to participate in a scheme that could harm animals.