The two adverbs are "somewhat" and "cautiously."
Cautiously modifies entered and somewhat modifies cautiously.
I entered the unlit room cautiously. The boy cautiously tested the water.
It means that adverbs describe verbs. They say more about a verb--like amount, time, way of action. For example: He FREQUENTLY went to that restaurant. They entered the room SWIFTLY. She caressed his cheek VERY SWEETLY. They also describe other adverbs (like in the 3rd sentence) and they mostly end in -LY.
She entered the room
"Entered" is the only verb in that sentence.
entered
entered
You have entered the room.
Yes, but leave out into is better.I entered the classroom.
I can use the word "for" in a sentence to indicate a purpose or reason, such as "I am studying for my exam."
"He entered the room" is the way the sentence should read
The client fell when he entered the shop.
When I entered the kitchen there was food everywhere!