Так и пишется,вроде.Я письменно пишу ее такой;)
Первое правильно.Третье и пятое.Первое приветствие.А два других представление человека кому-либо
1) How long (have you lived) in this town?
2) How long (hae you been doing) sports ?
3) How long (have you been) awake?
4) How long (have studied) at this school?
5) How long (have you had) this school bag?
6) How long (have you had) your shoes?
7) <span>How long </span>(have you been doing) this exercise?
are communicating, has, means, prevents, are starting, are translating, do not understand, is getting, develop