多久英语怎么说

多久英语怎么说：How long

1. How long have you been studying English? 你学英语多久了？

2. How long does it take to drive from New York to Washington D.C.? 从纽约开车到华盛顿特区需要多久？

3. How long will it take to finish this project? 完成这个项目需要多久？

4. I haven't seen you in a long time, how have you been? 我很久没见你了，你最近怎么样？

5. How long is the flight from Paris to Tokyo? 从巴黎到东京的飞行时间有多长？