China sent up the final satellite of Beidou Navigation Satellite System(北斗卫星导航系统) from Xichang Satellite Center___________ June 23,2020.
A.at B.in C.to D.on
周末是我们生活中重要的一部分，合理利用周末时间对青少年至关重要。某校英语杂志社就“如何让周末生活更有意义”开展征文活动。请你根据下面的思维导图，以“How to Make Our weekends more meaningful”为题，用英语写一篇短文投稿。
要求：
1.语句通顺，意思连贯，语法正确，书写规范。
2.所有提示须全部用上，并作适当发挥。
3.文中不得出现真实的人名、校名、地名。
4.80词左右（文章开头和结尾已给出，不计入总词数）。
How to make Our Weekends More Meaningful
Life on weekends is an important part of our daily life. How can we make our weekends more meaningful? __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
In short, let’s make good use of our weekends!
Many doctors volunteered to________（支持）Wuhan as soon as they got the news.
The________（发明）of the Internet has changed the world greatly.
Nothing is i________ if you put your heart into it.
Turn back and you will see me standing b________ you.
