Как поставить 5 типов вопросов к данным предложениям : 1) modern banks have assumed a great many functions quite dissimilar from their first ones 2) banks are deeply into the business of security underwriting as well as insurance

1) Modern banks have assumed a great many functions quite dissimilar from their first ones, don't they?
2) Banks are deeply into the business of security underwriting as well as insurance, aren't they?

1) Do modern banks have assumed a great many functions quite dissimilar from their first ones?
2) Are banks deeply into the business of security underwriting as well as insurance?

1) Who has assumed a great many functions quite dissimilar from their first ones?
2) Who is deeply into the business of security underwriting as well as insurance?

1) Do modern banks have assumed a great many functions or just a few?
2) Are banks deeply into the business of security underwriting or of insurance?

1) What do modern banks have assumed?
2) What business are banks deeply into?