All morning as she waited for the medical report from the doctor, her nervousness .
A. has grown
B. is growing
C. grew
D. had grown
网友回答
A. has grown
B. is growing
(答案→)C. grew
D. had grown
解析：grow与as从句里的wait发生。 题干前半句为时间状语，提供了极为重要的时间线索：All morning as she waited…，表示了过去的一段延续时间，本空之中动词所表示的行为（her nervousness “grow”）与此同时进行。此处仍应使用一般过去时。