| 1. | How often do you hear from your sister ? 你多长时间接到你姐姐一次信? |
| 2. | How long will it take me to pass customs ? 海关检查需要多长时间? |
| 3. | Take your time -- there is no rush . 你用多长时间都行不着急。 |
| 4. | I do not think i can hold on much longer . 我觉得自己坚持不了多长时间了。 |
| 5. | Give me a piece of rope ; any length will do ... 给我一根绳子,多长都行。 |
| 6. | But i wish it grew more potatoes . 不过我希望它多长一点马铃薯。 |
| 7. | Say , how long will it take ? 告诉我,需要多长时间能到达旅馆。 |
| 8. | How much time is there until lunch ? 离吃午饭还有多长时间? |
| 9. | How long will the registered trade-mark remain valid ? 注册商标的有效期多长? |
| 10. | How long will it take to set up the projector ? 把这个放映机安放好需要多长时间? |