1
-
My
father's
gone
on
a
business
____________________
to
Paris
,
but
he'll
be
back
tomorrow
.
2
-
We
went
on
an
interesting
____________________
of
the
museum
with
an
excellent
guide
.
3
-
The
astronauts
are
training
for
their
____________________
to
the
moon
.
4
-
The
committee
is
organising
a
full
-
day
____________________
to
the
Houses
of
Parliament
.
