You _________ be punished if you break the school rules. 

--- Have you decided which club to join?--- Not yet. I __________ go to the Music Club.

(2013·青岛二模)John ________ yet, or he would have telephoned me.

He _______ have completed his work；otherwise, he wouldn’t be enjoying himself by the seaside.

—What have you learned from your experience in Thailand?—Well, meeting people from another culture ______ be very difficult．