–––Who is singing in the next room? –––It_______ be Lucy. She has gone to Hong Kong.
He made up his mind to devote his life pollution happily.
When I am a bad mood, I like wearing orange to .
— Could you tell me ______? I must find him. — Sorry. I have no idea. But he was here just now.
__________ you offered him!
My father always has fun _______with the neighbours on weekends.