1.I can use this ticket on any bus,____?-yes,you can 2.The bill won't be a very high,_____?-No I don't think so. 3.He wasn't very polite,____?-No

1.I can use this ticket on any bus,can't I ?-yes,you can2.The bill won't be a very high,will it ?-No I don't think so. 3.He wasn't very polite,was he ?-No he wasn't  4.I didn't make a mistake,did I?-No you didn't  5.It won't be a difficult thing to do,will it?-No I don't think so.