— Must I stay here with you?—No, you_____. You may go home, but you ______go to the net bar.
---__________? ---He is tall and strong.
Which floor do you live ______ this building?
The post office is about five kilometers ______ our school.
The maths problems are too hard, only ______ people can work them out.
---______ does he go to Guangzhou on business? ---Three or four times a year.