连词成句。
1. Jim that I lost the key found yesterday
2. I who is know the man a model worker
3. The I received yesterday letter that was from my parents
4. This who saved is the doctor the boy's life
1. Jim found the key that I lost yesterday.
2. I know the man who is a model worker.
3. The letter that I received yesterday was from my parents.
4. This is the doctor who saved the boy's life.