—Will you stay for lunch?

    —Sorry, I _____. My brother is coming to see me.

    A. mustn’t        B. can’t          C. needn’t         D. won’t

 —Will you stay for lunch?
     —Sorry, I ______. My brother is coming to see me.
     A. mustn’t       B. can’t     C. needn’t      D. wouldn’t

—____ you stay for lunch ? —Sorry, I ____. My brother is coming to see me.

A. Will; can’t 　 B. Could; couldn’t 　 C. Must; mustn’t　　 D. May; can’t

“Will you stay for lunch?”

“Sorry, I ________. My brother is coming to see me.”

[　　]

——Will you stay for lunch?
——Sorry，       . My brother is coming to see me.