（ ）what about ___hiking___the mountains?

题目

（ ）what about ___hiking___the mountains?
A.go;in B.to go;to C.going;in D.goes;to

答案

what about 后应加doing 形式,
故第一个空应为going
即选C
hike in the mountains 登山
但是hike本意即为登山,
后面的mountains有些多余,
而且我觉得用in也不大合适.
But just in my opinion...