阅读填空Since 2017, short videos have got millions of views online and become one of the most popular communication ways in China. Many people create and share short videos on popular video apps like Douyin and Kuaishou. The videos are usually 15 seconds to a few minutes long. {#blank#}1{#/blank#}
{#blank#}2{#/blank#} According to a report, more than 50 percent of Grade 7 and 8 students said they enjoy watching these short videos. From the videos, teenagers see funny and exciting things they won't usually see.
About 47 percent of teenagers have posted their own videos. {#blank#}3{#/blank#} For example, a 13-year-old user named Xiao Qianyu has posted videos showing her learning jazz dance with her friends. This ha won her many fans.
{#blank#}4{#/blank#}Some students spend too much time watching them and therefore do not have enough time to study. Some videos are not suitable for teenagers and have a negative effect on them.
To deal with this problem, Douyin added a new function (功能). {#blank#}5{#/blank#} Also, the government asked companies to make stricter rules for these apps and take away the unsuitable videos. In this way, the apps have been controlled much more strictly since then.
A. They show people doing activities like cooking, exercising and singing.
B. It locks the app if someone uses the app for over two hours a day.
C. However, short video apps can also cause problems.
D. Most of the users on the apps are young people, including teenagers.
E. Many teens also like to share the fun things they do with others.