单选题Why ____it  get &nbs

问题补充：

单选题Why____itgetcolderwhenwegoupamountain?Wearegettingnearertothesun!A.ought toB.wouldC.shouldD.must

答案：

C解析should表示一种相反的意思；诙谐幽默 eg. He should worry about a little money like 5 dollars ?他不会为5美圆而担心的。