asterix
Joined: 26 Jan 2003 Posts: 1654
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Posted: Tue Sep 26, 2006 7:45 am Post subject: |
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If you ask, Do you know how long? there seems to be something missing, so you need to rephrase the question so that it's clear what you want to know.
For example: Do you know how long it takes to fly from Seoul to Sydney? Answer: It usually takes about ten hours.
Do you know how far it is from Seoul to Sydney? Answer: It's about 5000 miles.
If you ask how long? it will take, you expect the answer in the form of time . i.e. Days, hours, minutes etc.,
If you ask, how far? you expect the answer in the form of distance, i.e. Miles, kilometers, metres, etc., |
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