Must I go to medical school and be a doctor like you, dad?—No, you _______,son. You’re free to make your own decision.

The movie is about a true story ______ happened in Tang Shan in 1976.

Mr. White _____in that city since he moved there thirty years ago.

Modern science has given ____clear evidence ____ smoking can lead to many diseases ____ it’s time for us to take measures.

Dad, would you please drive __________?— No hurry .We have enough time before the plane takes off.