Inreality,notonlyanenormousamountofstrengthandfitnessb...

问题详情：

 In reality ,not only an enormous amount of strength and fitness but also determination ____ required to perform these activities that_  _seem childish and cause laughter rather than respect.

  A．are；could         B．are ;can       C．is; must        D．is; might

【回答】

D

知识点：主谓一致

题型：选择题