—What bad weather!—Yes. If it raining the fields will be covered with water soon.A. go on

问题补充：

—What bad weather!

—Yes. If it raining, the fields will be covered with water soon.

A. go on

B. goes on

C. will go

D. went on

答案：

A. go on

(答案→)B. goes on

C. will go

D. went on

解析：考查条件状语从句。句意;----多么糟糕的天气啊！-----是的，如果天继续下雨的话，田地很快将会被水所覆盖。If 引导的条件状语从句，主句中用一般将来时，从句中用一般现在时。故选B。