Choose the verb form that best completes the sentence

1. Since the rise of his designs, Frank Lloyd Wright an icon of modern architecture.
has become
became
becomes
had become
would become
2. Todd is a very good student, isn't ___?
he
him
his
3. How old ___ you?
am
is
are
4. Too busy for her own good, Sarah about drinking enough water.
was negligent
was neglecting
neglected
to neglect
was to neglect
5. The Labradoodle is a mixed-breed dog that hair instead of fur for warmth, making it a very attractive choice for allergic pet owners.
have
has
having
6. Penelope on her homework when the doorbell rang.
worked
was working
working
7. Even though Kenny was a great roommate, John hated in the shower.
his to sing
him singing
his singing
his to be singing
him being singing