Ответ:
1. I/ they
<em>Я</em><em> </em><em>не</em><em> </em><em>могу</em><em> </em><em>найти</em><em> </em><em>свои</em><em> </em><em>тетрадки</em><em>.</em><em> </em><em>Где</em><em> </em><em>они</em><em>?</em><em> </em>
2.you
Иди сюда, Джон! Мне нужно поговорить с тобой.
3.he
<em>Мой</em><em> </em><em>брат</em><em> </em><em>кадет</em><em>.</em><em> </em><em>Он</em><em> </em><em>учится</em><em> </em><em>в</em><em> </em><em>Волгоградской</em><em> </em><em>академии</em><em>.</em><em>.</em><em> </em>
4.her
"Ты знаешь ту девочку?" Да, я живу напротив её двери
5.us
Мы играем в шахматы. Хочешь поиграть с нами?
1,3,7и 8 они не правильные а остальные верные
<span>1 c 2 b 3 a 4 b 5c 6a</span>
Have to
А если подумать, то оба варианта правильны)
1) Did you meet Irene Adler five years ago? I didn't meet Irene Adler five years ago.2) Are you sure this case is interesting? I am not sure this case is interesting. 3) Is it a real mystery? It isn't a real mystery.4) Is such paper strong and stiff? Such paper isn't strong and stiff. 5) Did your visitor look at you with surprise? Our visitor didn't looke at us with surprise.6) Are you going to marry? I am not going to marry.7) Can you find me at my place? I can't find you in your place.