单选题 11.  She was so ______ in her job that she didn't hear anybody knocking at the door.
【正确答案】 A
【答案解析】[考点] 词语搭配
本题考查固定搭配be absorbed in...，意为“全神贯注于……，专心于……”。
   她如此专注于自己的工作，以至于没听见任何人敲门。