把这些单句合并成定语从句的复合句。 1.The story-book is good. He is reading it. 2.The watch is very nice. He gave me the watch for my birthday. 3.The teacher is named LiHong. She teaches us Chinese. 4.This is the room. We lived in last year. 5.This is the reason. He was late for school. 1.The story-book which he is reading is good. 2.The watch which he gave me for my birthday is very nice. 3.The teacher who teaches us Chinese is named LiHong. 4.This is the room which We lived in last year. 5.This is the reason wh
