It was the spectacle of monkeys sucking the refreshing juices around the beans that first_______men the idea of tasting them. A) to have given B) gave The answer is "a" but can't I also use "to have given" I learned that when I see first/ second things like that I should use "to infinitive" like this sentence: He is the first person to go there.
Top answer
No, the answer is not A; it is B. There is a mistake in the answer key.
— Mister Micawber
No, the answer is not A; it is B.
There is a mistake in the answer key.
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When confronted with a wordy structure, simplify it:
It was the spectacle...that first gave men the idea.
(X) It was the spectacle...that first to have given men the idea.
As you should be able to see, the clause needs a finite verb. There is no 'that' clause in your own example; it is a different structure. This is the equivalent of your example: