--It starts raining outside.--Oh ! A. so it isB. so does itC. it does soD. so it does

问题补充：

--It starts raining outside.

--Oh, !

A. so it is

B. so does it

C. it does so

D. so it does

答案：

A. so it is

B. so does it

C. it does so

(答案→)D. so it does

解析：问答两句的主语是指同一物/人时，简略附和语应用“so+主语+动词”形式，表示“确实如此”。