Who liveS in Portugal
Yep, it seems this course is full of errors.
Hopefully the errors are all on the English side and not the Vietnamese side as well
There are plenty there too
Who lives in Portugal? is correct. This has not been fixed. The English translation is in error, not the Vietnamese.
Who LIVES in Portugal? Not live.
The plural isn't grammatically wrong but it's idiomatic to ask "who" with singular verbs in English.
Khong. Em ay sinh ra o kia...
I messaged them to fix this.