Which do you like _______, coffee or tea

The conference gives a chance for peopleof different ____ to exchange

―How come a simple meal like this cost so much?―We have ________ in your bill the cost of the cup you broke just now.

Not until I ________ to work ____ how much time I had wasted.

Are Mr and Mrs Wang living alone in the house—Yes, they have three sons, but______of the sons live with them.