"What day of the week do you go running?"
I'm not sure of DL randomises the phrase pairings, but i dont feel that "几去" makes too much sense to be paired together, and should have instead been seperate options. It confused me, but I could be wrong.
Somebody explain, "几去" for me. Google translate says ，"Go a few". Or is 几 used the same as 几点 (what time?). 几去 means, "What go?"
"几" has to be grouped with the two characters in front of it, i.e. "星期", and not with the one after. So, it has to be read "星期几", which means "What day...?"/"Which day of the week...?"
The construction was explained in the lesson Time 1: