UnScramble this Word: l e t e o t a l?

Questions

there are more than ______ known spider species throughout the world?

finish the song line (adams) - everything i do - ?

finish the song line - am i only dreaming, is this burning an ?

finish the song line - you are the dancing queen, young and sweet,?

finish the song line - mamma mia, here i go again - my my, how can?