Answer: A) We, Julie and I are going to the museum.
B) "Norm" said Alice, "are you just going to stand there?"
A) Well, I'm not sure what to tell you.
B) The long, twisted, green goblin face terrified the kids.
Explanation:
A) We don't use comma because it's introducing a subordinate clause.
B) In direct speech, comma is used to separate the dialogue tag from the quoted speech, to ensure the reader who is speaking and what is being said.