—Look someone is coming. Guess who .—Jack. He’s always on time.A. can it be B. it can beC

问题补充：

—Look, someone is coming. Guess who .

—Jack. He’s always on time.

A. can it be

B. it can be

C. can he be

D. he may be

答案：

A. can it be

(答案→)B. it can be

C. can he be

D. he may be

解析：对于不确定的人可用it来代替，从句用正常的陈述句顺序，A和C都是疑问顺序，

故选B。