I who your close friend will try my best to help you out of trouble.A. amB. isC. areD.

问题补充：

I, who your close friend, will try my best to help you out of trouble.

A. am

B. is

C. are

D. be

答案：

(答案→)A. am

B. is

C. are

D. be

解析：句意：我作为你的亲密的朋友将帮助你脱离困境。这里是定语从句，先行词是I，当who在从句中作主语时，从句的谓语动词的选用与先行词一致所以用am，故选A。