成人英语三级考试

【单选题】______ seriously ill, you ought to go back to see her.
A. As your mother is
B. Your mother is
C. Being
D. Your mother being

网考网参考答案：D
网考网解析：
[考点] 独立主格结构 [解析] 本句中动词ing形式的逻辑主语与主句的主语不一致，应用独立主格结构，在句中作原因状语。 查看试题解析出处>>