Trains with the first letter D or Z can run __________ a speed of more than 200 kilometers an hour when it travels __________ the desert.
He _____ without saying good-bye to them, for he always has good manners.
Why _____ you always interrupt me?
I _____ you would come today. You _____ me a phone call in advance.
It is a good example of a site that many people think _____ to change.
Tom, you _____ leave all your clothes on the floor like this!