—I’m sorry. I         at you at the other day.— Forget it. I was a bit out of control myself.

So many people violate traffic regulations that we ____ put too much emphasis on the importance of traffic safety. 

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

All of us must do_______ to help protect the environment，or we will have more hazy weather雾霾天气.                                    

He _______that, without any strong evidence, he was sentenced to 10 years in prison by the judge in the trial.