单选题   When I had a problem she listened to me and suggested solutions. She was really ______.
 
【正确答案】 C
【答案解析】考查形容词辨析。Promising有前途的，shocking令人震惊的，understanding善解人意的，serious严肃的。乐于倾听别人并乐于帮助别人的人应是善解人意的。选项C是正确的。