So here’s what I found.And its 100% proof checked!
D- fight off an enemy attack (Apex)
1a: grim
1b: The Caplans are a robust, healthy lot. Or A man drank some robust wine.
2a: wince
2b: a Formula One car is superior to an Indy car in its acceleration
3a: notify
3b: his mouth fell open as he perceived the truth
4a: throbs
4b: nothing abated his crusading zeal
The wet side of the mountain is called the Windward side
Answer:
The part of speech that divulges what action is occurring is the verb.