1. A split infinitive is an infinitive that
A. is used as an adjective or a noun.
B. must have a subject.
C. is used without the word "to."
[D. has a word between "to" and the verb.]
Right.
The correct answer is D. A split infinitive is an infinitive that has a word between "to" and the verb.
To determine the correct answer, we need to understand what a split infinitive is. An infinitive is the base form of a verb, such as "to run" or "to eat." A split infinitive is created when another word or phrase is placed between the word "to" and the verb in an infinitive phrase. For example, in the sentence "To boldly go where no one has gone before," the word "boldly" splits the infinitive "to go."
Looking at the answer choices:
A. is used as an adjective or a noun. - This choice describes how an infinitive can be used, but does not specifically address the concept of a split infinitive.
B. must have a subject. - This is a general rule for any verb, not specific to split infinitives.
C. is used without the word "to." - This is incorrect because a split infinitive does include the word "to," but with another word or phrase inserted in between.
D. has a word between "to" and the verb. - This correctly identifies the defining characteristic of a split infinitive, making it the correct answer.
Therefore, the correct answer is D. A split infinitive is an infinitive that has a word between "to" and the verb.