--- I hear you have written a novel. --- Yes the book come out in a month or so.A. can B

问题补充：

--- I hear you have written a novel.

--- Yes, the book come out in a month or so.

A. can

B. must

C. should

D. would

答案：

A. can

B. must

(答案→)C. should

D. would

解析：此处意思“照理说，按照常规应该---”，故should符合。