我们来看看这道题目可以如何串题：
以“参加比赛迟到”为主题
有一个“想参加的比赛”，但是起晚了快迟到了，坐公交肯定来不及，于是用手机APP打车，最后成功参加并获奖，还举办了一个“庆祝活动”
以“语言学习”为主题
这是一次“语言学习”的经历，准备六级考试，通过手机的两个app，一个是刷题app提升学术能力，一个是时间管理app提升学习效率，可以帮我“提高注意力”，这是一个“积极改变”。
答案示例
I'd like to tell you about a time when I called my mom from my cellphone. This happened two months ago on a Saturday morning as I was preparing to enter the IELTS test centre. I discovered I didn't have my ID card with me when I arrived there, and with an hour before the test, it was too late for me torush home and return to the place.
I tried calling my landline phone first, but no one answered. I assumed my parents were out for a walk. As it was, I dialed my mother's number and asked her rush home to my room to find my ID card. I instructed my mother to look in the place where I might have placed my ID card via videocall. Fortunately, my mother soon found it and delivered it to the examination hall.
This exam is quite important to me, and I have been studying for it for quite some time. I would not have been able to access the IELTS exam centre without my ID card, meaning all of my prior efforts and fees would be in vain.
After that, I appreciate mobile phones and video calls even more. I would not have taken my IELTS exam if I had lived in a time when I could only make landline calls or write letters. Of course, it also reminded me to double check that I have my ID with me before going out for any future exams.
亮点表达：
it was too late for me to 对我来说...太晚了
rush home 赶回家
landline phone 固定电话
in vain 徒劳的，白费的
remind sb to 提醒某人做某事
double check 复合，复查
