Most Brazilians get along well with each other, _________ they are from different races(种族), including Americans, European settlers, and Africans,.
What do you have ____________ supper?
Tom needs some help ________ his homework. Can you help ________?
We have some boxes. But we need ________ .
Is this room ________ the meeting?
Dad, my trousers are old. I want to buy a new ________.