大全213（没有准确的解释）

213. Clark and Florence , a husband-and-wife medical team, worked steadily and efficiently through the night, but sipping their coffee the next morning, she noticed that he seemed disoriented.

(A) sipping their coffee the next morning, she noticed that he seemed disoriented

(B) sipping their coffee the next morning, he seemed to be disoriented, she noticed

(C) as they sipped their coffee the next morning, she noticed that he seemed disoriented

(D) as they were sipping their coffee the next morning, he seemed, she noticed, disoriented（C）

(E) he seemed disoriented, she noticed, sipping their coffee the next morning

为什么A 不对呀。

A. sipping的主语成了she.

但是题目的意思是她和她丈夫.