Hi Eric,
We do not have a sandbox environment for QSM testing.
We suggest you to create localhost for testing. You can install QSM plugin https://wordpress.org/plugins/quiz-master-next/ which is free to try out.
“Before I purchase your product, I want to be sure that I can port my quizzes to your framework.”
QSM does not have the ability to import data from Slickquiz plugin.
“Read or listen to a question, and answer by multiple choice.”
You can create a question in Chinese by typing the question in Chinese characters, which is what I did ( https://qsm-stg1.expresstech.dev/quiz/%e5%b8%b8%e8%af%86%e9%a2%98/ )
You can also add an mp3 file into the content of a question.
“Read or listen to a question, and answer by typing pinyin (with tone marks”
You can type any language as a quiz question as long as your keyboard supports it and the language is support by WordPress and is in UTF-8 character set.
Hope this helps.
Regards,
Kriti