单项选择题A.Greg used to be so informal in his dress.B.Greg used to be very formal in his dress.C.Greg is normally not very conscious of his style.D.Greg spent 180 dollars on his new leather jacket.
单项选择题A.To illustrate another effect of television.B.To demonstrate the importance of televised sports.C.To explain why television replaced radio broadcasting.D.To provide an example of something motion pictures can’t present.