— I don’t know what to wear at the party.— If I you I would wear a shirt and a tie.A. amB

问题补充：

— I don’t know what to wear at the party.

— If I you, I would wear a shirt and a tie.

A. am

B. is

C. were

D. was

答案：

A. am

B. is

(答案→)C. were

D. was

解析：if从句的虚拟语气，对于现在的虚拟用一般过去式，be动词都用were,故选C.句意：——我不知道聚会该穿什么。——如果我是你，我会穿一件衬衫加一条领带。故选C