DO you want to join（ ）？【填适当形式】

join sth （a club, association, etc)
join sb (us, me, him, her, them, etc)
join sb in doing sth (join me cutting art crafts, join the teacher performing, etc)
join in doing (join in singing, join in dancing, join in having dinner, etc)
join sth to do (join the music club to learn the violin, join them to make new friends, etc)
还有很多，可以做问题补充，具体说明是哪种形式

Dear Customer:
Hello! It is with gratitude, to extend cordial greetings and sincere thanks to you, Thank you for purchasing my product and your support and trust You let me in this industry with confidence and courage, and to enjoy the harvest and joy
As cross-border sellers merchandise by mail, the time is quite long I'm sorry Also thank you for your patience My EBAY seller, I did not know if any other that you are not satisfied with, questions and suggestions in this transaction Hope you are able to timely mail the form to tell me Because I know that a powerful driving force of each of your recommendations are my progress, I want success without your support the trust and attention
Dear customer of goods within seven working days of your receipt of goods, such as do not like any, I will for you to return policy If you like my products, hope you can my products to recommend to your friends In addition, I have up to over a hundred arts and crafts on mask class If you want to watch more merchandise, please e-mail to contact me I will send all the pictures to you (If you or your friends want to sell my goods in your own country, you can contact me I also do wholesale) In addition, if you and your friends like other kinds of Chinese arts and crafts, you can also tell you like Chinese handicrafts I will find you and mailed to you Because I'm your buyer in China I
Dear Customer: I once again sincerely thank you for your support Thank you let me have the opportunity to ask you, I own more substantial and professional, I hope to do for you in the coming days, more and better services I hope you can once again give me more support and help, help me to grow fast in this industry!
Thank you! May you and your family safe and happy!

可以连用。表示务必、一定要。
Do come to Brown’s, for I must see you
务必到波浪咖啡馆来。 我必须见你。

Visitors, when they do come, are staying fewer days and spending less
当游客们真打算来了，他们逗留的时间和消费都更少。

For those who do come, the classes are limited Arts and crafts seem to be the order of the day
对那些决定前来上学的孩子来说，目前的课程，也比较简单，主要是绘画和手工。
祝你学习进步！

小题1:E 小题2:B 小题3:A 小题4:C 小题5:G

试题分析：本文主要讲述的是参加夏令营的诸多好处，建议人们多让孩子去参加各类夏令营，对孩子的成长是有好处的。 小题1:E 根据下句Back then, before the air conditioner was invented, hot city summers were uncomfortable and even unhealthy for children, so escaping to the country for a few weeks became a popular trend可知回顾以前没有空调的时候，城市里的夏天是非常难受的。所以很多人都参加了夏令营。说明E句与下文是吻合的，就是为了说明夏令营有150年的历史。 小题2:B We taught each other words 根据本句说明我们相互学习，可知我们两个人的身上都有值得对方学习的东西，故B项符合上下文。 小题3:A 本段的标题是To challenge yourself，可知我们参加夏令营一部分的原因是为了挑战自我，也就是说在夏令营里，可以学会一些很不容易的知识。故A项内容符合上下文。 小题4:C 根据上一句I went to summer camp and I passed my swimming test! I can hardly swim, so it was a big accomplishment可知他在夏令营里学会了很多，很有成就感。说明他后来感觉很棒。故C项符合上下文。 小题5:G 本段的标题是To appreciate nature。可知是让我们欣赏大自然，提高我们的环保意识。故G项符合上下文。

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