?—Not bad.A. What’s it going?B. Where’s it going?C. How’s it going?D. How it is going?

问题补充：

?

—Not bad.

A. What’s it going?

B. Where’s it going?

C. How’s it going?

D. How it is going?

答案：

A. What’s it going?

B. Where’s it going?

(答案→)C. How’s it going?

D. How it is going?

解析：根据回答语可知，本题问的是情况，对此提问用how，本题是疑问句，故后跟一般疑问句的顺序，故本题选C。