Do you know the answer _______ the question. A. to B. of C. at D, in
— Do you know ______ yesterday afternoon? — Sorry, I’ve no idea.
A talk on pop music ______ in the school hall next Sunday.
I will call you as soon as I ______ to Japan.
Avatar is an interesting film. I ______ it twice already.
— What are the kids doing? — They ______ flowers in the garden.