— Why were you not at the concert last night?

— I ______a close game between Seattle Sonics and Miami Bucks. [ ]

A. watched

B. had watched

C. was watching

D. have been watching

广告中不编排任何要素的部分，甚至可以是以黑色或其他单色为背景，作用是利用于对一个孤立的要素集中注意力，这种手法称为（）。

A.装饰

B.空白

C.留白

D.反白