赞题库-背景图
单项选择题

Student:Excuse me, Professor Smith, can you spare me a few minutes There′s some-thing I′d like to speak to you about.I won′t keep you long.
Professor:________ .

A.Of course not.Haven’t you seen I have been pretty busy now
B.Well,I’m afraid we have to find some other time.I’m fully occupied now.
C.No.I’ll have an important meeting to attend this evening.
D.Not possible,as I don’t know how long you will keep me.