Answer:
The end of a complete sentence should be marked by a period, a question mark, or an exclamation point. If a sentence is not complete and it is terminated by a period, we have a sentence fragment as in the sentence below.
Explanation:
Possessive common nouns are common nouns or pronouns that own other nouns. Apostrophes are used to indicate this possession. Example: I will not hide the teacher's glasses.
Answer:
He has thought about this
