题目内容：

    There are some popular family videos posted on Chinese social media. In these videos, a young child calls out to their mother or father; the parent enters the room smiling, turns around and calls out to their own parent; the grandparent then enters smiling and calls out to their parent – the great-grandparent.

The format of these videos is being described as the “four-generation challenge”. 1. People from all over the world have left comments and even made their own versions.

A Facebook user named Antoine Yupud wrote, “I have to give that to China. 2..” The “four-generation” videos have not only touched foreign viewers, but also given them a deeper look into Chinese family values.

In most East Asian cultures, it is common for many generations of a single family to live together under one roof. 3.. Many Western countries tend to have nuclear families, made up of just children and their parents.

4.. Kids usually move out of the family home after turning 18. Many apply for loans and work part-time jobs to pay for college and rent. If they choose to continue living with their parents after becoming an adult, it can be seen as a sign of immaturity or failure.

Although family structures in the United States may differ, the loving bonds between family members are common to both. 5..

A. Family devotion is usually a strong value.

B. This is called an extended family.

C. These videos have spread to social media in other countries.

D. Nuclear families gradually took the place of extended families.

E. In United States culture, independence is highly valued.

F. These videos have made many people miss their own grandparents.

G. That might be why the “four-generation” videos have gained popularity around the world.