Only when 　possible to settle the problem. A. does the chief editor come will it beB. the

问题补充：

Only when possible to settle the problem.

A. does the chief editor come will it be

B. the chief editor comes will it be

C. does the chief editor come it will be

D. the chief editor comes it will be

答案：

A. does the chief editor come will it be

(答案→)B. the chief editor comes will it be

C. does the chief editor come it will be

D. the chief editor comes it will be

解析：本题考查倒装结构。only引导状语从句，主句中的主谓要倒装，故选B。