10. Sorry, I couldn’t answer your phone just now. I ________ a class online.

During my teen years, I wasn’t an outgoing person at all. I was ________ interested in volunteering. I just thought it was something that people who had a lot of free time did. My opinions on volunteering ________ when I started university.

As an English major(专业) student, I volunteered to teach children English. Later, I realized I wasn’t getting anything new out of my volunteer service. I made up my mind to ________ my comfort zone(舒适区). I started to volunteer at different art festivals, ________ I thought these chances could help me improve my communication skills.

The most important volunteering chance for me came in the summer of 2019. It became ________ to me that volunteering locally was not enough. It was time for me to try volunteering abroad. I stayed in Romania(罗马尼亚) for a month and ________ English to children from poor families. That ________ helped me to improve my teaching skills. It also made me different. I met people from all over the world and worked together with them. Since then, I have made many ________ friends. These days, I am always able to do better than my workmates whenever my job ________ cross-cultural communication.

Volunteering is one of the best things you could ever do, both for yourself and for the people you are going to help ________ the same time. Don’t ever hesitate(犹豫) to join the community of volunteers!