问题
选择题
________ with her work, she didn't even notice the heavy snowfall outside the window.
A．Occupying
B．To be occupied
C．Having occupied
D．Occupied
答案
答案：D
考查非谓语动词。分析句子结构可知，此处用过去分词作原因状语。be occupied with sth 表示“忙于某事”。