Looking into the dark tunnel, i began to feel a feverish excitement run through my body.
After finishing his first day with a cold, Joey has suddenly become feverish.
The high temperatures and humidity made Jack feverish.
You could use: chiflado.
sentences that have biting in them
The word "should" be used in the conditional sentences.
no
Febrile
You can can use the word "enhance" to enhance your sentences. Enhancing your sentences makes them so much better.
yes
They were spied
they
How about "who are you?' The is actually a song by The Who.