Mr.Morgan　can　be　very　sad＿＿，though　in　public　he　is　extremely　cheerful．

A)by　himself   ?B)in　person?    C)in　private    ?D)as　individual

Mr Morgan can be very sad          ，though in public he is extremely cheerful．

1. A.
   by　himself
   
2. B.
   in　person
3. C.
   in　private
   
4. D.
   as　individual