J K Rowling jumps farther than ______ in her class.

---Must I learn the new words in heart today?---No, you _______. You ______ do it tomorrow. 

---Dad, must we wait until the light becomes green?---Yes,I’m afraid we      .That’s the traffic rule.

Zhanglin was lost in computer games during his last year in high school, otherwise he_______ a student at Beijing University. 

—Do you think the phone is genuine(真品)? —I don’t think it ______ be a fake, as this shop has a very good reputation.