Помогите выбрать верную форму глагола!!!

I’m used to (to eat/ eating) Japanese food.
He promise (to be honest/ being honest)
We are interested in ( to study/ studying) foreign languages.
She wanted ( to visit/ visiting) her granny.
I enjoy ( to listen/ listening) to music.
She is thinking about (to buy/ buying) a new pet.
When they finish … (to eat/eating) their lunch, they’ll go to the office.
Girls, stop … (to giggle/giggling).
Fred can’t afford … (to travel/travelling) this year.