Choose the best topic sentence from the four options below. Write the corresponding letter of your choice on the answer sheet.

Choose the best topic sentence from the four options below. Write the corresponding letter of your choice on the answer sheet.

A.With the 30% rule, you can keep a conversation flowing in a more natural way.

B.The conversation with no new information becomes like an upside-down pyramid.

C.When you don^ add new information, the conversation becomes extremely boring.

D.In some casual conversations, the same information is being repeated over and over.

正确答案是A