单项选择题

Questions 52 to 56 are based on the following passage.
Right now, many parents are readjusting to life with their college students at home for a few weeks or months. Most, of course, are delighted to see the kids. And the kids, often exhausted after final exams, are ready for some parental loving care.
"The reality is that there is a lot of mixed feelings on both sides, "says Madge Lawrence Treeger, a psychotherapist (精神治疗医师) and former college counselor, the coauthor of Letting Go; A Parents’ Guide to Understanding the College Years.
Parents who cry when teens leave for college often cheer up pretty quickly in cleaner, quieter, less busy homes — and then welcome the blast of energy that comes in the door with returning students, Treeger says.
"But the first time they get in their car and expect to hear NPR (美国国家共用广播电台)and instead get a blast of heavy metal, or the first time they find wet towels on the bathroom floor, reality starts to set in, "she says.
Part of that reality: It’s not just parents and households that change while students are away. Students change, too. They grow up or at least make some progress in that direction.
"You need to negotiate new rules that make sense between adults — but that respect the fact that parents remain in charge of their homes", says Linda Perlman Gordon, a clinical social worker and author of several parenting books.
So, while a curfew(父母规定孩子必须在家的时间)may be unreasonable, a plan for kids to text you when they are out late is not, Gordon says. Likewise, expecting kids to join you for dinner every night might be a recipe for disappointment — but asking them to let you know when they have other plans is a matter of simple courtesy.
"It’s always a challenge to balance the shifting expectations of parents and students", says Marjorie Savage, director of the parent program at the University of Minnesota.
Savage likes the advice she heard from one counselor. Treat your returning child like a foreign exchange student—someone who might be persuaded to share your odd customs, while passing on a few of her own.
And when and if the going gets rough Keep in mind that summer is brief — and most upperclassmen don’t stay home for a full season, thanks to the lure of internships, travel and summer study.
Best of all, the freshman rolling her eyes at your household rules may well evolve into someone like Christina Pfaff. The recent graduate of the University of Richmond in Virginia, is at home with her family for just a few weeks before heading to the East Coast for a waitressing gig and serious job-hunting. But for now, she says, "I’ve really come to appreciate hanging out with my parents. And I like having family dinners.\
How should parents treat their returning kids according to Linda Perlman Gordon