In the night, the apple tree in the Keller backyard broke apart. The
Keller: See what happened to the tree?
Chris: [Without looking up] Yeah.
Keller: What’s mother going to say? [cut section with Bert]
Keller: What’s she going to say? Maybe we ought to tell her before she sees it?
Chris: I am thinking that way.
Keller: [Lowering his hand] I don’t understand you, do I?
Chris: No, you don’t. I’m a pretty tough guy.
Keller: Yeah, I can see that.
For full extended scene, please refer to clips or the script edition cited here: Miller, Arthur. All My Sons. Samuel French, 1947.