Translation:We already ended the class.
The 1st correct solution should be the literal translation "We already finished class." "The class has already ended." can be accepted, but it is only an Interpretation.
Moreover using 'end' as a transitive verb does not make sense to me here.
How do 'end the class'? Burn it down?
"Our" class has already ended. Reported 12/04/17
This should accept with or without "the" and either simple past tense or past perfect tense, e.g. "Class already ended".
Wô mèn would be we or us or something. This answer showing is incorrect
Oups, it is correct my dear Duolingo. "Class has already ended" would have completely different construction in Chinese.
Leaving out the article "The" is perfectly acceptable and should not be marked incorrect. "Class has ended already" is just fine.