John, look at the time. ____ you play the piano at such a late hour?

Just imagine performing such an opera as Turandot in the Forbidden City---there _____ be a better setting! 

—Must I return the book to you now, Jack? —No, you _____. You can give me back tomorrow.

The door _____ open, no matter how hard she pushes.

“Mary looks hot and dry.” “So _____ you if you had so high a fever.”