Those really really small components are made to a standard size/package so that they can be placed on the board by a robotic arm during manufacture. That's why they all look the same.
If you happen to know the size (ohms) of your missing resistor (or capacitor..... as the case may be) then you can always solder on the "smallest big one" you can find (1/4 watt or something). Physical size does not matter in this case.