The plants keep the buildings warm .......... winter
on
off
in
at
Are there .............. questions
any
some
few
little
The plants also provide home ............ bees
of
for
Let's ........... with this problem
start
starts
starting
started
When you give a presentation , make .......... contact with the class
hand
mouth
eye
ear
Air pollution is one of the .............. problems for people's health
bigger
small
biggest
big
Air pollution is created ............ traffic
by
The ........... make air pollution worse
fossil fuels
trees
clouds
rain
Don't move around alot , keep your .......... in the same place
legs
eyes
hands
feets
Thank you very .............
many
much
match
such
We should ............. solutions to these problems
find
finds
finding
found
The plant help to ............ the air
cleaned
cleaning
cleans
clean
Today , I'm going to talk ............. Air pollution
about
The plants .............. carbon dioxide
eat
absorb
drink
sleep
The plants produce ...............
carbon dioxide
fossil
oxygen
air