Unit 272 Guidebook: speculate about mysteries
CỤM TỪ CHÍNH
Speculate about mysteries
Couldn't
aliens
have
secretly
visited
our
planet
?
Why
would
aliens
want
to
come
to
Earth
?
According
to
one
theory
,
the
city
could
have
been
an
island
.
I'm
convinced
that
they
're
hiding
something
.
How
did
you
come
to
that
conclusion
?