the child talks as if she were a grownup,为何用were

She behaves as if she were a child.为何用were而不用was? 虚拟语气时态This child talks as if he were a man.这句话是对什么时态的虚拟啊?这里为 He talks as if he were the head of the office.为什么此处是用were而不是 The child acts as if he _____ an adult A. is B. was C. were she actes as if she were a great ______ she speaks as if she ---on the spot A were B had been as if的用法1.She loves the boy as if she "were" his mother2.She Linda acts as if she were the boss,______ people around.A.or As a child there were them The women looked after the boby as if he were her child he后面 Linda speaks as if she were a boss.为什么要用were? as if He treated the girl as if she were his own duaghter.