--- Must I finish my homework today?
--- No, you ______________. You ______________ finish it tomorrow.
A:can't; may
B:mustn't; must
C:needn't; may
D:mustn't; can
|﹣12|的相反数是( )
下列实物可称为组织的是( )
如图中机械停表的读数是____ 分____ 秒.