--Where is my notebook？

--I don’t know． It isn’t here． Maybe _　 _ took it away by mistake．

　 A． everybody　　 B． nobody　　　　　 C． anybody　　　　 D． somebody

--Where is my notebook？

--I don’t know．It isn’t here．Maybe _   _ took it away by mistake．

A．everybody          B．nobody          C．anybody         D．somebody