Context: Our friend Sho used to ski a lot , so he was teaching Johnny how to ski . My poor baby , he fell a lot , but I think he also picked it up pretty quick . Fortunately I did n't forget too much so I could still keep up pretty well . But I was definitely out of shape .
Question Why is the narrator struggling a bit ?
Possible answers:
OPTIONS: (I). They lack cardio .. (II). None of the above choices .. (III). They used to ski a lot .. (IV). They are just learning skiing ..
The answer:
(I).