. It is not I but you who the first to run to the goal in that petition.
A. is
B. am
C. is going to be
D. are
网友回答
A. is
B. am
C. is going to be
(答案→)D. are
解析：考查强调句型和固定句型。not...but...“不是......而是......”；It is...who是强调句型。句意“不是我而是你在比赛中跑了第一名。”强调的主语是you，谓语用are。故选D。