. — ____ I know your name ? — Sorry , you ____ .
A . May ; mayn''t B . May ; can''t C . Must ; mustn''t D . Need ; must
. — ____ I know your name ? — Sorry , you ____ .
A . May ; mayn''t B . May ; can''t C . Must ; mustn''t D . Need ; must
C
“should + have +p . p”表示过去本应该做而实际未做之事,有抱怨、责备之意。C