—Is the man our sales-manager?—No it not be him.He never plays cards.A. mustB. canC. wi

问题补充：

—Is the man our sales-manager?

—No,it not be him.He never plays cards.

A. must

B. can

C. will

D. may

答案：

A. must

(答案→)B. can

C. will

D. may

解析：考查情态动词表示推测的用法。cannot be是对现在的状语有把握的推测，意思是“不可能”。