In the United States, over 25 percent of senior citizens (people over 65) live alone. Without friends and family nearby, seniors are at risk of     1     (have) depression (抑郁).

Many communities are trying to deal with this problem. Providence Mount St. Vincent, a retirement home (退休疗养院) near Seattle, Washington, has     2     (recent) run a program. Over 400 senior citizens live at Providence Mount St. Vincent, and over 40 children from a few months old     3     age five go to daycare there. The children spend the day there with the senior citizens while     4     (worker) look on.

The program has clear advantages. For the older people, their social life improves (改善); they read to and play games with the children, and encourage     5     (they) to do other activities. This makes the seniors feel     6     (use) and happy, and if they feel happy, their health may improve.

The children also get a lot from the program. They have     7     patient group of people to play with in a safe environment. Some of the older people     8     (be) disabled, and staying with them helps children learn     9     (be) more understanding of people with disabilities.

Now, there are many programs like the one at Providence Mount St. Vincent.     10     is believed that even if the very young and the very old don’t have a shared past or future, their shared present can be perfect.

On April 22^nd, the UNEP (United Nation Environment Programme) called for increasing protection of Antarctica.    1    is the world's most southern continent, Scientists who are    2    (relate) to this programme say climate change and human activity have    3    (obvious) led to the melting of massive pieces of Antarctic ice. A    4    (various) of animals living there are disappearing and oceans and seas around the globe are rising.

Since 2019, scientists have travelled around the world, determined    5    (compare) different situations of different continents. Their findings show that the climate change leads to a    6    (shock) threat to coastal cities. For instance, a number of coast cities are affected by the rising sea levels such as Venice,    7    ancient city of Italy. So far, this situation    8    (make)worse by the fact that its ancient houses built on a body of water are slowly sinking. In addition, the number of famous buildings and priceless artwork    9     (destroy)by the salty water is increasing.

Therefore, it's time that action should be taken to improve the serious problem. And many countries around the world are helping each other to find some solutions    10    the problem together.