Sentence examples for what useful from inspiring English sources

CAM users were asked how frequently they used CAM, how they got the information about the CAM, what useful effect they were hoping to get from CAM, and how they had actually benefited from the CAM.

What useful purpose does sleep even serve?

Nor what useful purpose is served.

What useful purposes does a space program serve?

So the question arises of what "useful lessons could be drawn" from the British experience.

What useful role can any London mayor play in soothing industrial relations on the Underground?

Such a notion permits Thomas to advise us to seek naturally what is useful to us.

Do you still do that and what other useful tips can you share with us?

What is useful and what is superfluous?

In what way useful?

So, what is useful?