两道英语选择,请解析

问题描述:

两道英语选择,请解析
Excuse me,Sir.Do you have the time?
-----().
A.Yes,I do B.No problem C.Half past twelve D.Certainly,I have
Do you mind ()up the music?
NO,never mind
A.to turn B.turning C.turn

第一题问的是时间,相当于what's the time?所以选C.
第二题mind后面要加doing,这是固定结构.介意做什么