A、thEExpo 86 hElD inCAnADA wAs A grEAt suCCEss.
B、thEExpo 86 hElD in switzErlAnD AttrACtED pEoplE From All ovEr thE worlD、
C、thEExpo 86 hElD inCAnADA wAs so out oF DAtE thAt thE worlD DiDn’t likE it.
D、thEExpo 86 hElD in switzErlAnD wAs ABout thE spACE AgE.