When there are two or more people, animals or objects:
all, each, every or
none.
All the pupils had an A for English! They all had an A! (alle, allemaal)
Every pupil is accounted for. (ieder)
Every vote counts. (ieder)
Each/Every house in this street has a thached roof. (ieder per stuk/ geheel)
Those CDs are 20 euros each. (elk/per stuk)
None of the solutions really work. (geen)