Air __________ can make our air dirty and make it hard to breath.
pollution
Solar energy is a ___________ energy source.
renewable
Wood is a ________ material we can use to make things.
natural
Solar panels can _________ enough energy to heat a house.
produce
I need to ________ my computer, because my old one is broken.
replace
Nuclear, solar power, wind and coal are all ________ of energy.
sources
A __________ celebration in Taiwan is Chinese New Year.
traditional
I like to _______ my toys for other toys.
barter
We all liked his __________ in art class.
creation
My grandfather is a ________ man he never boasts about his achievements.
humble
My Mom gave the shop assistant _________ for the apples.
payment
The cat ____________ came out of its hiding place.
reluctantly
I ______ to my Mom I broke her favorite mug.
admit
He ___________ which road was the quickest to the city center.
considered
He took a _____________ picture of the sunset.
magnificent
Volunteering is an example of good ____________ in your community.
citizenship
