— The Queshi greenway has become a popular place for Shantou people on the weekends. — That’s right. And you ________ drive your car on it because it is a path for cycling and walking. 

--Mum, can I wear my jeans to school?--No, you ________ wear school uniforms. That’s the school rule.

--We need a man full of wisdom to take charge of the project.--________ the young man graduating from Harvard have a try?

— Can I go to the movie, Mum?— Certainly. But you _______ be back by ten o’clock.

We ___________to speak aloud in the public place.