Помогите пожалуйста с тестом по английскому. Нужно вставить пропущенные слова.

Choose the right answer:
1) he is keen __ photography that he always carries a camera
Варианты:
to
of
on
about
2) Our father is interested __ astronomy
Варианты:
in
into
of
about
3) I understand you are crazy __ Justin Bieber but do you really need another poster of him?
Варианты:
of
about
in
to
4) What do you like ___ in your free time?
Варианты:
do
doing
spend
spending
5) I am not crazy __ that idea
Варианты:
of
on
about
in
6) She enjoys __ a bike
Варианты:
listening
watching
riding
reading
7) She prefers __ gifts more that receiving them
Варианты:
hiding
diving
sitting
going
8) She can't __ it when I'm late
Варианты:
stand
mind
hate
adore
9) He's a good doctor. All his patients __ him.
Варианты:
hate
take
adore
make