- pursue, follow up on, act on - carry further or advance; "Can you act on this matter soon?"
--1 is one way to react, oppose
Sample sentence:
Somebody ----s something
- act on - regulate one's behavior in accordance with certain information, ideas, or advice; "The Founding Fathers acted on certain moral principles"
--2 is one way to act, move
Sample sentence:
Somebody ----s something