There seems to be nothing that seems impossible f答:当先行词是anything, everything, nothing (something 除外), few, all, none, little, some等代词时,或者是由every, any, all, some, no, little, few, much,each等修饰时,限制性定语从句只能用that。There 是主语,seems是谓语,nothing是宾语,that seems impossible for him in the world是...