Mr. Li, a man calling himself Smith wants to see you. ________ he come in?
He _____ more than thirty.
A computer _____ think for itself; it must be told what to do.
You _____ to eat if you don’t feel like it.
How _____ you say that you really understand the whole story if you have covered only part of the article?
It has been announced that candidates _____ remain in their seats until all the papers have been collected.