Правильно у меня составлены вопросы? how many muscles has got human body? are for building and repairing muscles,we need protein? are the vegetables,fruits,nuts,cereals and oily fish - this products useful for skin? what is the role of our skin? how many bones has got human skeleton? are the calcium keeps our bones healthy? what is the role of the brain? are the brain needs green vegetables,healthy fats,bread and pasta? если есть ошибка,исправьте,заранее .

How many muscles human's body have got?
Do We need protein for building and repairing muscles?
Vegetables, fruits, nuts, cereal and oily fish are useful for skin?
How many bones human's skeleton has got?
Does the calcium keep our bones healthy?
Так же можно сказать и What's the brain's role?
Does the brain need green vegetables, helthy fats, bread and pasta?

Вроде бы так. Хочу сказать, что тебе лучше позаниматься английским, так как ты сочитаешь времена, хотя так делать нельзя, так же есть некоторые ошибки в грамматике, но в целом неплохо))9