句子一般由主语`谓语`宾语`定语`状语和补语构成.请试着划分下列句子的成分.
1.The books lying on the floor are mine.
2.Suddenly it began to rain.
3.To catch the train,I got up early yesterday.
4.He wonders if I still study English.
5.The letter which I received the day before yesterday was from a friend of mine.
谢谢.
参考资料:智慧的我