Tom was about to close the window ________ his attention was caught by a bird.

_______ do you go to the cinema?– Once a week.

Statistics show that men have _____ as women do for every mile they drive．

She looks very sad. I want to help her, but I just don’t know ____ to do it.

Kate, do you know _____ it is from here to the post office?—About twenty minutes’ walk.[ ]