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hép mi vs huhu
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7.
_are really useful.
C. Glass bottles
and put them in the recyclign bins.
C. magazines
A. Plastic bag
B. Bins
D. Glass jar
8. We wash bottles and
A. trash
B. newspaper
D. cans
9. You should
TV if you don't use it.
A. close
B. turn on
C. turn off
D. open
10. I think
electricity is very important.
A. save
B. saving
C. protect
D. protecting