Translate the following into Chinese, paying attention to the underlined parts. 1. He knew that the work was good, but he began to fear that it was beyond his power to finish it. 2. Before we could stop him, he had jumped on the train and disappeared into the car. 3. My friends and family highly appreciated the effort and I hate to admit it , but I appreciated it too. 4. I know that medical education can sometimes leave much to be desired . 5. I wonder if they are coming. 6. Hold the line, please! 7. Keep off the grass. 8. Wet Paint!