下列句子中，哪个是一个正确的从句结构？ A. I know that she is coming. B. She is happy because she won. C. Although it was raining, we went out. D. All of the above. 答案解析 本题考察从句结构的正确性。正确答案是D. All of the above，因为所有选项都包含了正确的从句结构。A. 是名词性从句，B. 是原因状语从句，C. 是让步状语从句。易错点在于对从句类型的识别。 正确答案：D