1.I would not want to study abroad, because here I have many friends, acquaintances and family! And just to go and throw them I can't!
2.I would choose London because of the huge variety of universities and colleges.
4.I think that Moscow state University because he is known around the world.
5.I think so, Yes. Because many people from other countries love Russia and want it to live, study and work!
Надеюсь помогла! На 3 вопрос не смогла ответить, извините!