A play with sequence

What should be the next two alphabets in a given sequence?

                 GE,RU,CH,GR,?

• Doe this need that secial tag? Yu know, the one that' hidden in this commen. ight? Aug 29 '16 at 12:17
• @Mithrandir: I think trivia is just fine. Aug 29 '16 at 12:23
• Actually,I was not sure about it..... Aug 29 '16 at 12:26