Combine each pair of sentences into one after the model. (将下列每组句子结合成一个句子。) 1. He lay in the bed. He was reading a novel. _________________________________________. 2. We lived in this city. We had many joys. _______________________________________. 3. We look out through the window. We find a beautiful garden. ____________________________________________. 4. They came into the house. They talked and laughed. ____________________________________________. 5. All the students sat in the classroom. They listened to their teacher carefully. _____________________________________________.