in,on,at;That,What,ItA“gap year'"can refer to any time spent awa

in,on,at;That,What,It
A“gap year'"can refer to any time spent away from work or school ________ pursuit of an interest or a dream.________ makes a gap year different from vacation is that a person is involved in some kind of constructive activity.
【正确答案】：in;What