It was u____ that he fell off the truck without being hurt.
____Joy sent Elsa back to the wild.
____Three years later,Joy saw Elsa again.Elsa had three babies.
____Joy found Elsa on her way home.
____Elsa drove away the rhino and saved Joy.
如图,已知AB∥CD∥EF,那么下列结论正确的是( )