This bookJenny’s. Because her name is on the cover of the book.A. needB. must beC. can’t

问题补充：

This bookJenny’s. Because her name is on the cover of the book.

A. need

B. must be

C. can’t be

D. must

答案：

A. need

(答案→)B. must be

C. can’t be

D. must

解析：句意：这本书肯定是Jenny的，因为她的名字在数封面上。A需要；B肯定是；C不可能是；D必须，肯定。Must在表推测是，表示肯定推测；故选B。