1.We can keep in touch with the people all over the world by means of radio and television.2.We need to make up the lost time.3.The floor is too dirty that we need to wash it.4.He was sent to the city to find out the information there.5.An old lady was knocked down when crossing the road.以上，请指教~
1. Through radio and television, and the people of the world that we can keep in touch.2. We must make up for lost time.3. Need to sweep sweep away the dirty floor.4. He was sent into the city to go, inquire about the situation there.5. Across the road, an old lady was knocked down by a truck.
Through radio and television and the people of the world that we can keep in touch. We must make up for lost time.Need to sweep sweep away the dirty floor. He was sent into the city to go, inquire about the situation there.Across the road, an old lady was knocked down by a truck.
