Sequencing questions can play a helpful role in easing the respondent into the interview.

To a small degree spasticity performs the helpful role of exercise, but it is usually bothersome to normal activities in life.

"We think it would be much more productive if they played a helpful role in negotiations rather than taking sides."

But I'm also convinced that the time has come for the state to take a much more aggressive and affirmatively helpful role.

The helpful role of the local business community was a key to the harmonious way in which Newark's government modulated from one regime to another.

Can the private sector play a helpful role in education?

And I think they played a major, helpful role in raising expectations.

Earlier in the crisis, by maintaining a little distance from Washington, Moscow played a helpful role as diplomatic broker.

By preserving at all times its high political and environmental objectives, Parliament has played a helpful and constructive role to work towards this agreement.

Helsinki II, soon to meet in Paris, could play a helpful role.