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“Maybe it’s the power outage.” Sarah says, “Let’s _____ some candles.”
“Wait! Look! The moon _____ is so bright.” Amy says, “Let’s have a rest and enjoy the moon.”
“Great idea!” Sarah says.
A
B
C
E
D
E
C
A
D
B
electricity
system
light
visible
invisible
fire
Infrared ray
ultraviolet ray
X-ray
Light
Source
natural
artificial
(man-made)
sunlight
flashlight
neon