_____ your father go to work by bus last year— No, he didn’t. He walked.

I feel tired and sleepy.— Why not stop ______

You’ve failed to do what you ___________ to and I’mafraid the teacher will blame you.

J"already caused_____damage to Sino-Japanese bilateral contacts".

You haven’t got the textbook for my chemistry yet.—I know, and we ________ to get it for the last five weeks