A、  B、  C、  B问题是一个陈述句，因此答案必须是对于陈述内容的适当反应。题目说这是Melissa的首次发言， (B)回答说已经知道，并补充说她做得很刻苦，因此是最合适的答案。(A)中出现的present是对prese

What time is the last bus to Kensington?
(A) In five minutes. You’d better hurry.
(B) An hour and a half, if you’re quick.
(C) About ten days, I imagine.

This is Melissa’s first presentation.
(A) It’s a present for a friend.
(B) I know, and she has worked hard on it.
(C) At the conference hall, in ten minutes.