It's common to see food delivery workers riding electric bikes in a hurry through big cities in China. Some of them even risk {#blank#}1{#/blank#} (run) red lights to deliver their meals in time. However, such careless behavior often causes serious problems.

    The reason for the rise of such a careless behavior is that there is {#blank#}2{#/blank#} large demand for food delivery workers, and many companies offer high salaries {#blank#}3{#/blank#}(attract) new workers.

    In fact, food delivery workers are often under high {#blank#}4{#/blank#}(press) from their employers. They face company fines for delivering food late. Moreover, the more orders they take, the more money they can earn, {#blank#}5{#/blank#} leads to some workers checking {#blank#}6{#/blank#}(they) mobile phones for new orders while they are riding their bikes

    While most companies require delivery workers to follow traffic rules, it remains a problem whether these requirements and rules are {#blank#}7{#/blank#}(strict) obeyed

    To solve the problem, some cities {#blank#}8{#/blank#}(take) action since last year. Shanghai required the delivery workers should{#blank#}9{#/blank#}(train) on traffic rules and safety. Now in Shenzhen, if a delivery worker gets caught breaking traffic rules more than twice, he or she will be banned {#blank#}10{#/blank#} driving food delivery vehicles for a whole year.

    You see them everywhere: people walking with their attention {#blank#}1{#/blank#}（concentrate）on their smartphone screens on busy streets. But walking and texting can be dangerous and cities in the United States and Europe have stepped {#blank#}2{#/blank#} their efforts to deal with it.

    In Honolulu, using the phones while crossing the street is forbidden. It has passed a law that says “No pedestrian （行人） shall cross a street or highway while viewing a mobile electronic device. In other words, do not look at a screen when you cross the street{#blank#}3{#/blank#} you could be fined. Honolulu is the first major U.S. city{#blank#}4{#/blank#} （forbid）what is called “distracted walking”.

    People {#blank#}5{#/blank#} text while walking are nearly four times as likely to have at least one dangerous action. A lot of people do it {#blank#}6{#/blank#} they know it is dangerous. They tell themselves that it is important.

    Using phones while walking may lead to injuries and deaths, but it seems to be a global problem. Pedestrian deaths {#blank#}7{#/blank#}（increase）as the use of cell phones rises in the past 5 years, and it is expected that the tendency will continue.

    Other cities have come up with creative ways to help protect those using cellphones while walking. A small town near Amsterdam has set up special crosswalks with flashing lights on the ground. When the traffic lights turn red or green,{#blank#}8{#/blank#} do the lights on the ground, reminding pedestrians when it's safe to cross. In a town of Germany, similar lights were used after a teenager using her smart phone was hit and seriously{#blank#}9{#/blank#}（injure）.

    If you still want to text while walking you could avoid being fined in Honolulu {#blank#}10{#/blank#}using voice-controlled digital assistant（数字助手） like Siri or Google Assistant Or you could just wait until you are again, safely off the street.

My wife and I like watching plays, so we will go to the theater whenever we have time. But before we buy tickets, we would like to know if the play is good or bad. When a new play comes, we {#blank#}1{#/blank#}  (usual) read the newspaper to get information about it. Last week a new play was put on at the theater. The newspaper said it was very {#blank#}2{#/blank#} (interest) so we decided to go on Saturday night. My wife took a long time to make her {#blank#}3{#/blank#} (decide) about what to wear and we left our house a little late. {#blank#}4{#/blank#} the time we got to the theater, the first act had already {#blank#}5{#/blank#} (begin). After the play was over, we met some friends, {#blank#}6{#/blank#} lived next to us several years ago. Then we went dancing. By the time we got home, it was about two o'clock in the morning. I'm not used to {#blank#}7{#/blank#} (stay) out so late and I was {#blank#}8{#/blank#} (extreme) tired.

When I was younger, I did not have the money to go out for {#blank#}9{#/blank#} evening like this. Though I can afford it now, I don't have the energy{#blank#}10{#/blank#}(enjoy) it.

China's Chang'e 5 mission successfully delivered samples(样本)of moon rock and dust to Earth on December 17, 2020. It{#blank#}1{#/blank#}(mark) the first time in 4 years that moon rocks have been brought back to our planet, since the Soviet Union's I.una 24 mission in 1976.

The sample capsule landed in Inner Mongolia{#blank#}2{#/blank#}a little after 2：00 a. m. Recovery teams in trucks and helicopters located the landing site shortly after and secured the sample{#blank#}3{#/blank#}(contain).

While Apollo-era moon rocks are estimated to be about 3 to 4 billion years old, the material{#blank#}4{#/blank#}(collect) by Chang'e 5 is from a site in the northwest region of the moon's near side. This area was formed{#blank#}5{#/blank#}(late), and the rocks here are thought to be only about 1.2 billion years old. That means scientists could learn more about the evolution of the moon and test out new techniques for estimating the age of geological samples from other{#blank#}6{#/blank#}(planet)and moons(卫星).

The Chang'e lunar program, {#blank#}7{#/blank#}includes landing two lunar rovers(月球车)on the moon's surface, has been{#blank#}8{#/blank#}(remarkable)successful. Although Chang'e 5 was a short mission, it's one of{#blank#}9{#/blank#}most complex projects undertaken by the Chinese space program so far. The country is far from done with the moon—Chang'e 6, a second lunar sample return, is scheduled{#blank#}10{#/blank#}(launch) in 2023 or 2024.