【题目】Meyer and his team were the first people ___________ how the disease spreads from animals to human.
A.showingB.show
C.to showD.shown
在线课程【答案】C
【解析】
考查非谓语动词
句意:Meyer和他的团队第一个证明了这种疾病是如何由动物传播给人类的。the first后面用不等式作后置定语,不等式作定语时,通常与被修饰名词构成主动或被动关系,本题表示主动,故选C。