Either or?

either or, is used to introduce the first of two or more alternatives;
eg:-He must be either mad or drunk;he "chow" the car and killed two peoples !
eg:-Please either come in or go out; because you're treated as a spy !
eg:-Please either come in or get out, don't stand there in the narrow doorway to blocking our people !
eg:-Either the dog or the cat have been eaten by our Bosses' kitchen !