---Excuse me Sir.Do you have the time?---.A. Yes I do.B. No problemC. Half past twelveD. C

问题补充：

---Excuse me,Sir.Do you have the time?

---.

A. Yes,I do.

B. No problem

C. Half past twelve

D. Certainly,I have.

答案：

A. Yes,I do.

B. No problem

(答案→)C. Half past twelve

D. Certainly,I have.

解析：Yes,I do.是的，我……；No problem 没问题；Half past twelve十二点半；Certainly,I have.当然，我……。根据上文，打扰了，先生。你有时间吗？结合语境可知选C。