THE WORLD IS GETTING HOTTER
The world is getting hotter because of us! Our factories, cars, trains and planes (1)________the air dirty. When (2)_________sun shines, everything gets hot and the dirt stops the hot air from going (3)________to the sky. Because the hot air has nowhere to go,(4)________gets hotter.
Already our world is (5)________than it was one hundred years ago. Hot countries may become drier and the people who live there will not be able to grow enough food. Ice in cold areas (6)________changing to water because of higher temperatures. When this happens, the seas become bigger. Some towns (7)________the sea may have a problem soon.
We can help (8)________we stop making the air dirty but we must do something fast!


A
B
C

1.
make
making
makes

2.
a
the
an

3.
on
at
up

4.
everything
all
every

5.
warm
warmer
warmest

6.
are
be
is

7.
near
to
next

8.
so
if
but