They are not verified because they did not do what they needed to do to be verified.
It wasn't ever really said but he has a twitter if you want to ask him :).
He doesn't have a verified account.
She does not have a verified Twitter account.
Her verified twitter is ryrynewman
His verified account is @achrisevans
Twitter typically verifies famous celebrities, organizations, and companies. They don't just give out verified accounts. You would need to become famous to get your account verified.
There isn't a verified Twitter account.
Her verified Twitter account is @haydenpanettier
Yes. His verified Twitter account is @adamsandler
He doesn't have a verified account.
Rebecca Black's verified Twitter account is @MsRebeccaBlack
Verified Twitter - @KendallJenner