Нужно вставить myself/yourself и т. д.
1.Mum's not disappointed with you. She's disappointed with...
2.Josh and Karen had a good time in Moscow. They went there by...
3.Mila cooked a cake by...
4.I didn't notice an obstacle and hurt...
5.Our chief never cares about other people. He only cares about...
6.They want to know you better. Tell them more about ...(one person)
7.See you in a week! Have a productive meeting and take care of...(two people)

First of all i want to tell you that my name is nina and i am 15. a few   words about my appearance. my height is nearly 149 cm. but i'd like to be a bit taller. well, i am not slim but  i am  not fat either.  i have a round face as everyone has, a bit long nose and big cheerful grey eyes. my skin is a bit pale but i like this fact, i don't like ruddy faces. i have no  freckles as my friend olga has. my forehead is open. i think i have a charming smile.  my hair isn't very short but it's not long either. it is  straight and  black. i think that i look like my her father. i am very active and creative, cheerful and curious. but the best thing is that i'm reliable.

Мы из америки. сейчас мы находимся в . я из олбани. олбания  большая. она находится в штате нью-йорк. я из нью-йорк сити. он большой и красивый. он находится в штате нью-йорк.