This book Lucy’s. Look! Her name is on the book.A. must beB. may beC. can’t beD. mustn’t

问题补充：

This book Lucy’s. Look! Her name is on the book.

A. must be

B. may be

C. can’t be

D. mustn’t be

答案：

(答案→)A. must be

B. may be

C. can’t be

D. mustn’t be

解析：本题考查情态动词。肯定性推测要用情态动词must。句意：这本书一定是Lucy的。看，她的名字在书上。