Word Classes: Content Words

Which is verb in this sentence: "The athlete trained hard for the upcoming competition."

Which is adjective in this sentence: "The ancient manuscript revealed unknown facts about the civilization."

Which is the appropriate noun for the incomplete sentence: "The students were asked to write a short _____ about their favorite teacher and what made them inspiring."

Which is verb in this sentence: "The discovery of the hidden cave amazed the explorers."

The professor spoke so _____ during the lecture that many students struggled to understand the main points.