As a result, they have lost the parachute [u]they once had in times of financial setback[/u] — [u]a back-up earner[/u] (usually Mom) [u]who[/u] could go into the workforce if the primary earner got laid off or fell sick.关于本句语法的分析，下列选项正确的是（    ）。 A: they once had in times of financial setback 为 the parachute 的同位语 B: a back-up earner 为 financial setback 的同位语 C: 主句主干为 they have lost the parachute D: who 引导限制性定语从句，修饰 they

Questions 14 ～ 17 are based on interview of Mr. Plant and his interviewer. What was Mr. Plant’s place in the family A: He was the bread earner in the family. B: He was the eldest son in the family. C: He was the youngest son in the family. D: He was his father’s favorite son.

[听力原文]11-15Family roles are changing. In Grandmother’s day, a woman was a mother, a wife, a cook, a laundress, a nurse, and a teacher. These jobs were all part of her socially designated role, and she usually stayed home all day. Grandmother worked only for her family. Grandfather was the money earner in the family. Boys were expected to grow up and get jobs outside the home. Girls were expected to enter into marriage and motherhood.Some families have kept this traditional pattern: Father works and Mother stays home. In other families, there are other patterns: Mother and Father work, or Mother works and Father stays home. In a few families, two people share a job. There is much more variety in life style now than there was before. What does the passage talk aboutIt talks about the changes in（）