47. When giving a speech, one had better ______.
(A) talk about something that is new and exciting
(B) talk about the subject as long as you can
(C) talk about all the friends you have
(D) talk about a topic you are very familiar with

Next, the topic(話題) of your speech needs to be something(某人/某事) you know a lot(很多) about. If you are a fashion designer, for example, you should not give medical advice. You had better(更好的)talk about what styles(風格) are best(最好的) for what kinds(種類) of body(身體) shapes(形狀). 

接下來，你演講的主題需要你非常了解。 例如，如果您是時尚設計師，則不應提供醫療建議。 你最好談論什麼風格最適合什麼類型的體型。

47. When giving a speech, one had better(更好的) ______.

      發表演講時，最好______。

(A) talk about something that is new and exciting

      談論一些新的和令人興奮的事情

(B) talk about the subject(學科/控制) as long as you can

      盡可能多地談論這個話題

(C) talk about all the friends you have 談論你所有的朋友

(D) talk about a topic you are very familiar with

      談論一個你非常熟悉的話題