Выберите глагольную форму, которая лучше всего завершает предложение
1. The teacher tells her students, who promise they ______ quietly for three hours, that she won't give extra assignments.
would study
studied
study
have studied
will study
2. Penelope ______ on her homework when the doorbell rang.
worked
was working
working
3. My cousins live in New York City. They ___ really cool!
am
is
are
4. I ______ back to my office after I saw the rain.
walked
walk
am walking
5. How old ___ you?
am
is
are
6. 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
7. Todd is a very good student, isn't ___?
he
him
his