---Could you be so kind as to work an hour overtime,Portia?_____,if you think it is necessary.
问题描述：
---Could you be so kind as to work an hour overtime,Portia?_____,if you think it is necessary.
A.Go ahead B.Yes,please
C.I’m afraid not D.With pleasure
答
D.With pleasure （没问题/我很乐意效劳.后半句是如果你认为有必要）
A.Go ahead （去吧/好吧,一般用于允许某人做某事）
B.Yes,please （好的,一般用于接受其他人的好意/服务）
C.I'm afraid not （恐怕不行）