hi i would like more information in facilitating for example
how long is it?
how long have u studied? i would appreciate some exercises
Here are some examples:
How long will it take you to wash the car?
How long have you worked here?
How long is your vacation?
How long can you survive without your MP3 player?
How long is your hair?
How long will he be? I've been waiting for an hour.
How long do you think it will take us to walk to your house?
Let us know if you have further questions.