preview the theme 빈칸에 알맞은 알파벳을 모아 THIS가 무엇인지 맨 아래에 써 보세요. Collect the appropriate alphabet letters for the blanks and write down what THIS is at the bottom.

What is
THIS?
People make
THIS in
factories.
We make
toys
and cups
with THIS.
THIS is very
light and
lasts long.
We use THIS
every day.
But people
throw THIS
away into the
ocean.
THIS is plastic.