请以My hobby为题写一篇英语作文，供英语课上交流。

1. What is your hobby?

2. When and how did you become interested in this hobby?

3. Why do you enjoy your hobby?

4. How does your hobby influence you?

写作要求：

1.根据所提供的问题，适当拓展想象空间，灵活地将提供的信息体现在文章中。

2.条理清楚，语句通顺，书写清晰、规范。(词数80左右)

My hobby

若采用间接标价法，汇率的变化则以（）数额变化体现。

A.本币 

B.外币 

C.中间货币 

D.特别提款权