1
.
The
archeological
site
at
Palenque
was
____________________
(
fascinating
,
fascinated
)
to
the
group
.
2
.
They
spent
hours
walking
among
the
structures
even
though
some
were
quite
____________________
(
challenging
,
challenged
)
to
climb
.
3
.
They
were
____________________
(
amazing
,
amazed
)
to
see
how
high
and
how
quickly
the
little
boy
could
scale
the
mountain
behind
the
temple
.
4
.
The
climb
was
____________________
(
terrifying
,
terrified
)
to
some
but
they
tried
anyway
.
5
.
They
had
never
been
so
____________________
(
frightening
,
frightened
)
in
their
lives
.
6
.
Their
guide
was
____________________
(
impressing
,
impressed
)
with
how
much
they
already
knew
about
the
Mayan
civilization
.
7
.
By
the
end
of
the
day
,
they
were
____________________
(
exhausting
,
exhausted
)
.
8
.
They
went
back
to
the
campsite
hoping
to
have
a
____________________
(
relaxing
,
relaxed
)
evening
,
but
they
were
____________________
(
surprising
,
surprised
)
to
find
some
wild
dogs
eating
their
dinner
.
9
.
The
dogs
paused
and
looked
____________________
(
puzzling
,
puzzled
)
at
the
angry
campers
before
they
ran
away
.
10
.
The
campers
were
too
____________________
(
tiring
,
tired
)
to
go
into
town
for
dinner
.
