1. Noun: Cat
Sentence: The cat meowed loudly.
2. Pronoun: They
Sentence: They found their lost keys.
3. Verb: Jump
Sentence: She jumped over the fence.
4. Adjective: Tall
Sentence: The tall tree swayed in the wind.
5. Adverb: Carefully
Sentence: He drove carefully on the icy road.
6. Preposition: On
Sentence: The book is on the shelf.
7. Conjunction: But
Sentence: I wanted to go out, but it started raining.
8. Interjection: Ouch!
Sentence: Ouch! That hurt!