问题补充:
--- Bob,are you free at the moment?I have to ask you some questions.
--- .
A. It’s a pleasure
B. Ask,please
C. Help yourself
D. Yes,go ahead
答案:
A. It’s a pleasure
B. Ask,please
C. Help yourself
(答案→)D. Yes,go ahead
解析:考察交际用语.根据上文,鲍勃,你这会儿有空吗?我有些问题要问你.可知选D,是的,说吧!最符合语境.