Online grocery shopping is convenient and continues to grow in popularity. But a new study     1     (publish) in Public Health Nutrition shows that many online products do not have information about ingredients or nutrition     2    (fact), which is a huge miss.

Required information was present, obvious and readable for only 36. 5% of observations.     3     is even more troubling, researchers say, is that non-required information, such as claims like “low in fat” or “organic”, was displayed on 63.5% of the products.

Labeling information     4     (be) important for all consumers so they can make informed (明智的) choices when grocery shopping. People may use the information label     5     (determine) sodium and potassium (钠和钾) to manage heart or kidney disease or may focus     6     sugar, fiber, or carbohydrates to manage diabetes (糖尿病).

Food retailers should     7     (immediate) change their practices and disclose the full information label clearly, consistently and readably. “    8     (difficult) in finding necessary information on some products could actually pose (引起)     9     immediate danger of a severe reaction or even death to the most sensitive consumers,” a researcher says.

The researcher also points out the availability of food labels     10     (make) a difference to the quality of our food choices at the population level. Not having this information potentially weakens the general public health.

The first domestic chickens we have found lived no earlier than 3,670 years ago, suggesting they have a far shorter history than we thought. These birds don’t seem to have been raised for their meat,     1     (make) it unclear what drove domestication. The chickens alive today descend from a wild bird native to South-East Asia     2     (call) the red jungle fowl, but exactly     3     domestication occurred was unclear. Some researchers have estimated that the first domestic chicken lived more than 6000 years ago, while others claim     4     (find) chicken bones at 10,000-year-old sites.     5     analysis by Ophelie Lebrasseur at the Centre for Anthropobiology and Genomics of Toulouse in France and her team concludes that the     6     (early) clear evidence of domestic chickens appeared between 1,650 BC and 1,250 BC at a site called Ban Non Wat in central Thailand. Not only     7     (be) chicken bones superabundant at the site, but there are signs that people were buried with the birds,     8     Lebrasseur says makes a domestic relationship clear. Lebrasseur and her team suspect chicken domestication might have been triggered by the       9     (appear) of cereal fanning in South-East Asia. “This created a more open, less tree-covered environment, which is actually an environment where red jungle fowl thrive,” she says, “And they could have fed     10     the waste from human societies.”

When I was in primary school, I disliked doing exercise. I felt tired when I did any kind of exercise. My parents were really     1     (worry) about my health. One day, after having supper, my father     2    (come) and asked me to have a walk with him in the park. I agreed and we went     3     together. It was hard for me to walk for half an hour. I wanted to give up,     4     my father encouraged me to keep on walking. From then on. I was often asked to walk with my parents. To my surprise, I could walk for an hour in the     5    (five) month. How     6    (pride) I felt! I loved taking exercise gradually. Now I am     7     excellent runner in my school. I take part in the school sports meeting every year.

During all our life, we may face a lot of     8    (difficulty). Don’t be afraid of     9    (they). Please try to face them     10    (brave). After you overcome what you used to be afraid of, you may find how great you are!

In a first of     1     (it) kind in China, Shenzhen, a city that pioneered reform and opening-up in China, will allow fully autonomous vehicles     2     (run) on roads in certain areas without human control equipment.     3     city in Guangdong province revealed a new regulation tailored for smart connected vehicle management in China, which is scheduled to come into force on August 1.

The new regulation, which is set to fill the legal gap for domestic intelligent connected vehicles, said automakers don’t     4     (necessary) have to equip fully autonomous vehicles with manual driving mode and corresponding (相应的) devices, and nor do they have to have human drivers.

But such fully autonomous vehicles can only drive on certain roads and sections     5     (select) by Shenzhen’s traffic management department, according to the regulation, which was published on the official website of Shenzhen Municipal People’s Congress.

The regulation classified autonomous vehicles     6     three types: conditionally autonomous driving, highly autonomous driving, and fully autonomous driving. Conditionally autonomous and highly autonomous vehicles must have manual driving modes and corresponding devices, and     7     (equip) with drivers.

Meanwhile, the regulation     8     (clarify) rules for responsibilities and auto insurance coverage in the event of car accidents     9     involve autonomous driving, which is expected to promote the fast     10     (develop) of self-driving vehicles.

Originally known as the Imperial University of Peking, Peking University was established in 1898. The     1     (establish) of the university marked the beginning of higher education in China’s modern history. In modern history of China, it was a center for progressive thought and was influential in the birth of the New Culture Movement, May Fourth Movement and many other     2     (significance) events.

Today, Peking University     3     (place) by many domestic university rankings among the top universities in China. Peking University is one of the best academic     4     (institution) in China and the world. The university lays emphasis     5     both teaching and scientific research. It has made great efforts     6     (improve) the undergraduate and graduate education, and maintain its role as a leading research institution,     7     makes it attractive to many students home and abroad. Peking University has educated many famous Chinese figures, such as Zhong Nanshan and Tu Youyou. Peking University was ranked     8     (sixteen) globally by Times Higher Education in 2021.

Peking University’s library is one of the largest libraries in the world,     9     (contain) over 8 million volumes. In addition, the university is especially famous for its campus environment     10     the beauty of its traditional Chinese architecture.