Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.

How is no no um what is the stage 1 in the life of a bill?
What is stage 1 in the life of a bill?

What keeps the sensitivity of hormones at the same level, oh I mean the immune system?
What keeps the sensitivity of the immune system at the same levels? 

How did or no what has the fish larvae caused a sharp drop in?
What has the fish larvae caused a sharp drop in?