5 Read the text and choose the correct answer, A, B or C.
UNRAVELLING THE MYSTERIES OF PLUTO
NASA has received new photos from its space
explorer, which provide more 0 data on Pluto than
ever before, even though they are only a few
pixels in resolution. They may look quite
unremarkable at first glance, yet they have
already uncovered mysteries about Pluto’s
appearance, making this a 1

_____ opportunity.

What is 2
______ to be the most interesting
information brought by the photographs, is that
there are regions of light and dark on Pluto.
It is 3
______ the bright spot might be a polar cap.
It always appears to be brighter, no matter which
way the planet rotates. The substance of the ice is
speculated to be nitrogen instead of water like in
our polar caps.
Without a doubt, the photos are a really
promising development in terms of space imagery
and will 4
______ a huge contribution to future
research on the planet. The camera that took
them was installed on a spacecraft moving
towards Pluto and astronomers are expected to
5
______ more fascinating information concerning
the dwarf planet in the coming days. We can
assure you that you won’t be disappointed.
1 A history B historical C historic
2 A consisted B considering C considered
3 A believing B believed C belief
4 A do B make C bring
5 A reveal B have revealed C revealing