Answer:
Forgot to turn in her assignment.
Step-by-step explanation:
A sentence, by definition, has a subject and a predicate, which always contains a "finite" verb. Verbs in their infinitive form, such as "swimming," are not considered finite and will not form a complete sentence. Sentences often also contain an object, which is a person or thing that is being acted upon by a verb. However, a simple statement such as "Dogs run" is a considered a sentence as there is a clear subject and a verb that is in agreement with the subject.
A sentence fragment is a group of words that do not form a complete sentence because it is missing a subject or a main verb. From the answer choices provided, we can determine that "Forgot to turn in her assignment." is a sentence fragment. We do not know who the "her" is referring to, as there is no subject to perform the action of forgetting to turn in her homework. To make it a complete sentence, we could say "She forgot to turn in her homework."
The other answer choices all contain a subject and main verb:
- Kara (subject) wants (verb) to find a tutor.
- My tutor (subject) is (verb) helpful.
- Because Mitchell (subject) studied (verb), he did well on the quiz.