It's not proper English, so spell check will say it's wrong, but people say "what're" all the time, as in "what're you doing today?"
contraction made in the words you will: you'll
You'll is the contraction of 'you will'
Contraction word made from the words they and are is they're.
contraction made from the two words you will: you'll
The contraction for "I will" is "I'll."
the answer is won't for the people did not know
The contraction made from "must" and "not" is "mustn't".
No
Haven't is the contraction of have not.
The contraction of would not is wouldn't.
The answer is haven't.
Contraction word for she will: she'll