Исправьте ошибки. You don't can go to the party. Where do you must be? You can't use a...

Question

Исправьте ошибки.

You don't can go to the party.

Where do you must be?

You can't use a computer?

He can play chess when he was Five.

Can I come in?

Answer 1

You can't go to the party.

Where you should be?

You can't use a computer?

He could play chess when he was five years old.

Can I come in?

Answer 2

Вроде бы всё правильно, но 2 предложение с конца мне кажется не совсем правильное)