query Expressions ,plugins , and emails

here is my question i want to user 2 query expressions in the same plugin 1st question

2nd i want to implement a method to send an email for a party using the data retrieved from the query expressions like in the 

Email email = new Email

           {

               To = new ActivityParty[] { toParty },  I Want In The To :to get multiple email from the first query expression and pass them here in the party 

               From = new ActivityParty[] { fromParty },

               Subject = Subject, from the sconed query expression i want to pass the subject based on multiple field values 

               Description = description.ToString(),here is the same situation i want to fill by fields value retrieved from the sconed query expression basically it's a 3 fields values and some static text 

               DirectionCode = true

           };

so please tell me is that possible plus am i doing it right like am i going in the right approach 

Best Regards