The book ________ be Tony's because his name is on it.

1. A.
   must
2. B.
   can't
3. C.
   would
4. D.
   shouldn't

 ---The book _____ be Tom’s.

---No, it _____ be his. There’s a name on the book. It’s Jim’s.

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

The book ________ be Tom’s. Look! His name is on it.

A．have to           B．might             C．could             D．must