Don’t stay up late studying, or you will feel in class the next day.
—Which is the biggest number of the four? —.
What did Mr.Smith do before he came to China? —He in a car factory.
—Hello! May I speak to Lucy,please? —Sorry,I’m afraid you have the wrong .
—Mike,is this Tom’s pencil? —Oh,yes,it is !
He did the work all by himself. A. already B. together C. alone