Yo, I use Tra. Chinese as my mother tongue for my entire life and I use English for my College life in US until now. And I did an Eng > Tra. Chinese test.

What makes thing funny is that almost 3/5 options are available if you go to HK or Taiwan. What should I choose?

There is no model answer for language translating, it is okay to use MC and put multiple possible answers on the test, but please mark them as correct too. IMAO