I don’t know if Mr Green . If he I will let you know.A. comeswill comeB. will come--

问题补充：

I don’t know if Mr Green . If he , I will let you know.

A. comes--- will come

B. will come--- comes

C. will come--- will come

D. comes--- comes

答案：

A. comes--- will come

(答案→)B. will come--- comes

C. will come--- will come

D. comes--- comes

解析：本题考查时态。本题考查条件从句，主句用将来时，从句用一般现在时代替将来时。故选B。