How to overcome difficulties of not knowing L1 with Chinese students?

How to overcome difficulties of not knowing L1 with Chinese students?

I have had lots of students from various countries and nationalities.  At first I was really excited and worried to teach my first Russian students, apart from Armenians. The fact that Russian is not my mother tongue seemed to bring some challenges. However, the communicative methods helped me to overcome all the obstacles of teaching Russian students. Soon, I felt ready to face some new challenges and, why not difficulties, of working with students whose L1 I do not speak at all. Finally, I got the opportunity to join the Chinese project and teach English to Chinese students. Most of my students are from Hong Kong, they are 9 or 10 years old. I was really very surprised when I found out how responsible and organized Chinese students may be. They do know why they learn the language, they respect their teacher and are willing to do all tasks given by a teacher. They do not need their parents to be present at the lesson, as they are able to solve almost all the technical problems that may occur during our classes. The only thing that I had to get used to was having lessons through WeChat and not Skype. The latter is not popular in China, instead of it, they use WeChat, which, unfortunately, does not have all important functions that we are used to, lik