Its nearly seven oclock . Jack . be here at any moment . A. must B. need C. should D.

问题补充：

It\s nearly seven o\clock . Jack . be here at any moment .

A. must

B. need

C. should

D. can

答案：

A. must

B. need

(答案→)C. should

D. can

解析：根据语境，Jack 是该来但还没来，should 在此有责备之意。