If I were in your position,I would act differently为什么不用was

If I were in your position,I would act differently为什么不用was ____in you position,I would help him A Was I B Were I C If I were i in your position.i would stay句中的were是不是用错了,修饰i不是用was吗 为什么If only I were abird.中的were不用was 为什么 if i were a boy 中的were 不用was? If I were a tear in your eyes,I would fall down in your lips 为什么是if I was your boyfriend而不是if I were your boyfriend? if i were a tear in your eyes ,i would fall down on your lip if i were a tear in your eyes,i would fall down on your lips If I were a boy中,为什么要用were不用was? If I were a bird的英语语法问题?为什么用were 不用was? if I were a boy为什么要用were不用was?求解