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-- Whose book is this?

  -- It must          .

A. be Carla               B. belong to Carla’ s

C. belong to Carla         D. is Carla’ s

— Whose book is this?

—It must belong_________.

A. Diana ????????????? ????????????? B. Diana’s????????????? ????????????? C. to Diana????????????? ????????????? D. to Diana’s

 —Whose book is this?

—It _____ be Mary’s. Mo Yan is her favorite author.

—No, it ____ be hers, she never brings novels to school.

A. may; mustn’t                   B. can; can’t                C. must; can’t                       D. must; mustn’t

 ---Whose book is this?

---It________ be Ning’s because it has her name on it.

A. must          B. can’t             C. might          D. could

Could you please tell me ___________?

A. whose book is this    B. whose book was this

C. whose book this is    D. whose book this was