1.him
2.me
3her
4his
5my
6her
7they,me
8me
9its
10his
"in the future awaits him great happiness" - прямой порядок слов (great happiness awaits him), after THE high school - артикль обязателен, just try to make good grades как-то не очень сказано... а остальное ничего.
Переводчик, надеюсь правильно
Yes,i often go to museums.
I enjoy that at exhibitions a lot of different pictures and fakes.
My favourite artist is Brad Pitt.
Yes,i would like to learn to paint well.
Because they like the exhibits.