7、道你买到那本书的地方。65.我不喜欢他的原因是因为他太笨了。66.你能否向我解释下你迟到的原因。67.这些照片是我去年在北京照的照片。68.他是我常常和你谈到的那个人。69.雷锋是一名经常帮助其他人的战士。二.把下列各组句子合并成一句。 1. The letter is from my uncle. I received it yesterday. 2. The teacher saw what happened. He was standing nearby. 3. The girl is not here now.
8、She told me the news.4. This is the tree. He was climbing it yesterday. 5. Do not drink water. It has not been boiled. 6. The student is in the room. His name