Điền từ thích hợp vào chỗ trống

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Our planet
on is called
in
The planet we live
'Earth'. Earth is one of the eight
planets
round and round the sun.
Example
on
at
1
move around
1
what who
that
twentieth century, we didn't have
really good maps of our planet. But now,
pictures of
Until
all
the
one
lots
any
no
take taking took
special cameras in space can
Earth so making maps is easy!
4
of our planet has water on it so, in
Most Every
pictures, Earth often .....
white ball!
Many
looks looking looks
6.
like a big blue and
6.
But pictures of Earth don't only help us to make
maps. When we look at
8
7
we can also
7
they
their
them
learn a
about the Earth's environment
8
too
lot
some
and weather.
Travelling in space and exploring other planets
more about Earth, too.
9.
teaches
9.
ours
us
our
10
you like to design spaceships or to be an
10
Can
Маy
Would
astronaut one day?