How do u make a fragment into a complete sentence

A sentences must have a subject, an object, and a verb. The subject of a sentence is the thing performing the verb, and the object of a sentence is the thing the verb is performed on. For example, in the sentence “Sally ate pizza,” Sally is the subject, ‘ate’ is the verb, and ‘pizza’ is the object of the sentence. So, to complete a sentence fragment, just add the missing components to the sentence.

Here are some examples of word fragments and the completed sentences they form:

Fragment: Maya went.

Missing component: Object

Complete sentence: Maya went *to the shop.*

Fragment: Picked up his turtle.

Missing component: Subject

Complete sentence: *Billy* picked up his turtle.

Fragment: Polly her missing pencil.

Missing component: Verb

Complete sentence: Polly *found* her missing pencil.

i need for you to know i dont know the answer

yes, it can be both.