It's better to use plastic chopsticks and wash them than to use disposable chopsticks.
I like shopping in used-book stores and in used-clothing shops.
I used to type my letters, but now I use a word processor.
I have no use for it.
I use it.
I'm not what I used to be.
People used to think that only humans could use language.
He is not what he used to be.
She is not what she used to be.
Between the language he uses and the language those around him use.
Akira is using that same dictionary that his father used as a student.
This is very useful.
Certain poisons, properly used, are useful.
He uses the same books as you use.
Jazz uses the same notes that Bach used.
We used to compile survey results using spreadsheet programs but recently we feel that database software's summing methods are quicker so we use databases to total them.