Did you grow up in one culture, your parents came from another, and you are now living in a     1     (total) different country? If so, then you are a third-culture kid.

The word “third-culture kid”     2     (use) in the 1960s for the first time by Dr. Ruth. She first came across this phenomenon while     3     (research) North American children living in India. In general, third-culture kids benefit     4     their intercultural experience and they often reach excellent academic results.

However,     5     (be) a third-culture kid is not always easy. Third-culture kids may not be able to adapt     6     (they) to their new surroundings. Also, they often find it hard     7     (develop) new friendship. Additionally, for a third-culture kid, it is often     8     (easy) to move to a new country than to return to his homeland. For example, after living in Australia for many years, Louis finally returned to the country     9     she was born. She didn’t know anything about current TV shows or fashion trends. And she didn’t share     10     same values as other teens of her age.

Young people spending hours     1     (stare) at screens means half the world may need glasses within 30 years. Phone devices and computer screens are to blame     2     the rising risk of short-sightedness among children and young adults, say scientists. Researchers have found high levels of looking at a phone or tablet is linked with around 30 percent     3     (high) risk of short-sightedness, also known as myopia. But when it     4     (combine) with excessive computer use, that risk rises to around 80 percent. Researchers fear that this could mean that by 2050, half the world or five billion people could be short-sighted.

The authors examined more than 3, 000     5     (study) investigating smart device exposure and myopia in children and young adults aged between three months old and33 years old. In 2019, the World Health Organization     6     (recommend) children under two should not have any screen time     7     children aged two to five should have no more than one hour a day of sitting in front of screen. But in the same year, a CensusWide survey of 2, 000 British families found children were spending     8     average of 23 hours a week staring at screens.

Numerous studies have also suggested that number has     9     (vast)increased during the Covid-19 pandemic. Professor Bourne of Ophthalmology in the Vision and Eye Research Institute said: “Around half the global population is expected to have myopia by 2050, so it is a health concern     10     is escalating quickly.”