A)Linda:Excuse me,Barbara,can I ask you something?
Barbara:Yes,what is it?
Linda:Well,some of us are going to Shades disco tonight.Is it all right if I stay out a little later?
Barbara:How much later?
Linda:Until one o'clock maybe.
Barbara:One o'clock!No,that's far too late!
Linda:But it doesn't start until nine thirty.
Barbara:Well,I think two hours is enough.No later than midnight,please.
Linda:OK,I'll try not to be late,but you know how few buses there are at that time.
Barbara:Well,if you leave the disco at 11.30,you shouldn't have any prob- lems.
Linda:Could I have a front door key,please?
Barbara:No,I'll wait up for you.
B)The United States of Americais in the north part of America.It has an area of 9,372,576 square kilometers.Its capital is Washington DC.It has 50states.It has a population of 266,578,000.Its native language is English,with 6%of the population speaking Spanish as a first language.Most of its people live until around 75 years old.Its government is something like federal republic.The law is made by the national conGREss.