I have two questions;
1. Can you please tell me the way to add more fields in registratiosn form, by defoult there is only the email field, I would like ti get more data
2. When someone registre is there a possibility of hold it in stand by untill I aprove it registration?
You need to enable the option in Woocommerce > Settings > Account and Privacy, disable the option to generate a password automatically as well as take the email as the user ID.
The default Woocommerce does not provide such an option, unfortunately. You will have to find a plugin.