Can a warlock use his eldritch blast in conjunction with
Shot on the Run? What about hideous blow and Spring
Attack?
No and no. Using eldritch blast requires a standard action.
The Shot on the Run and Spring Attack feats only let you use
an attack action (that is, a specific kind of standard action) in
conjunction with their allowed movement, not any kind of
standard action.
严格地说, spring attack就是一个标准...