V batteries are pushed into the light detector, and the alligator clips are attached to the circuit wires (the green wire should be next to the green mark on the base).
(V batteries; are pushed; into the light detector) (the alligator clips; are attached; ) (the green wire; should be; next to the green mark on the base)
V batteries the alligator clips the green wire
are pushed are attached should be
into the light detector
next to the green mark on the base