Helen with the football player from the USA. They American.A. are; are B. is; are C. is;

问题补充：

Helen with the football player from the USA. They American.

A. are; are B. is; are C. is; is D. are; is

答案：

解析：句意：海伦和这个足球选手来自美国。他们都是美国人。结合语境可知本题是一般现在时态。前文主语是海伦，with the football player是伴随状语，故谓语动词用单数。下文主语they是复数形式，故谓语动词用复数。选B。