Based on paragraph 4, when should you begin the preparation for a presentation?
A.Two days ahead of time. B.As early as possible. C.When you are clearheaded. D.When you are not busy.正确答案B
Based on paragraph 4, when should you begin the preparation for a presentation? 
Based on paragraph 4, when should you begin the preparation for a presentation?
A.Two days ahead of time. B.As early as possible. C.When you are clearheaded. D.When you are not busy.正确答案B
