| 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. | Say , how long will it take ? 告诉我,需要多长时间能到达旅馆。 |
| 6. | How much time is there until lunch ? 离吃午饭还有多长时间? |
| 7. | 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? |
| 8. | How soon will you be through ? 您要用多长时间打完电话? |
| 9. | How often do you have a bad back ? 你多长时间腰痛一次? |
| 10. | How soon can you be ready ? 你要多长时间才能准备好? |