Answer:
B, D, A, C
Thinking he might be hurt, Robert ran into help. (needs comma after "hurt")
No running is allowed near the pool. (no comma after "running")
Is Mel Gibson in the movie version of *Hamlet* or *Macbeth*? ("Mel" does not need italics)
"It won't work take very long," replied Frank. (comma in quote, not period)