| 1 | Why take the trouble to do that? | |
| 2 | After I finished my work, he said that he wanted to give me a hand. | |
| 3 | But concerns over intellectual property rights have proved to be unfounded. | |
| 4 | Taking the car for an oil change and tune-up never hurts either. | |
| 5 | These regulations become largely redundant in an era of carbon taxes. |