Many people think it’s very difficult to a conversation with someone who only says “Yes”

问题补充：

Many people think it’s very difficult to a conversation with someone who only says “Yes” and “No”.

A. break off

B. focus on

C. keep up

D. listen to

答案：

A. break off

B. focus on

(答案→)C. keep up

D. listen to

解析：短语辨析。A中断,中止;突然停止；B聚焦于；C保持,维持;继续进行,坚持；D听；句意：很多人认为与一个只说yes和no的人进行一个对话很难。