Read this extract, and then answer the question that follows it: Cheadle Hulme, Manchester, 1951. A hot August day. A distant rumble of thunder. DORIS wearing a sensible beige skirt, and MARGARET, wearing ski pants, are in the garden folding a single bed sheet. One more sheet remains on the line and one of JACK's shirts. Socks lie on the grass, one maroon one a little way off. The rest of the washing is already folded and in a washing basket. DORIS is 51 and MARGARET is 20. Doris: I'll be glad when they put an end to clothes rationing. These sheets are quite threadbare in the middle. Sound of light aircraft going overhead. [studies the sky.] RAF from the base at Padgate. Margaret: They're B29s, not Lancasters! Doris: I'll be glad when they're gone. [Disdain.] Americans. Margaret: Mother! Without them we couldn't have won the - Doris: Are you going to help me fold this sheet, or are you just going to stand there all afternoon identifying aircraft! Margaret: [staring at the sky] Maybe one of them's Ken. Doris: [they hold the sheet by the corners and tug] I don't see how it can be, if he's calling in half an hour. They shake the sheet vigorously. Margaret: I can't wait to live in London! [No reply.] Ken says he can get a job there. He's frightfully clever. They balloon the sheet up into the air. Margaret: I'm in love, Mother. Distant rumble of thunder. DORIS looks up at the sky. Doris: It's not going to hold. [Pause.] They pull diagonals to stretch the sheet. Margaret: And I'm going to learn to type! Ken says it will be helpful if we need a second income. [As they shake the sheet.] Typing's far more useful than all those stupid school certificates. I'll get a proper job. Doris: What do you call running a home? [Looks up at the sky.] I knew we were in for a storm. Margaret: I'm not wasting my life. Doris: [angry] Thank you Margaret! [They fold the sheet lengthwise.] Pull! [MARGARET pulls so hard that DORIS lets go and they jerk back from each other.] Doris: There's no need to snatch it out of my hands! There see, now you've spoiled it all. Margaret: Well you can pick it up again, can't you! [Pause. DORIS picks it up, they resume folding.] I'm not going to have a family, babies and all that. Ken and I have decided. Doris: [distant rumble of thunder] It will break soon. They fold the sheet lengthwise. And what makes you so sure you can keep Mother Nature at bay? Explore the ways in which Keatley vividly reveals the tensions between mother and daughter at this moment in the play.