But Professor Bedau says that nobody can be sure about the results of making new forms of life.

VOA: special.2010.07.20

They are trying to make sure that cacao can be grown in a way that is fair to the farmers and safe for the environment.

VOA: special.2010.02.17

Doctors can collect it with a needle. But people who donate marrow must first have tests to make sure they are a good match for the patient.

VOA: special.2009.12.16

Without a recording,no one can be sure exactly what he said.

VOA: special.2009.02.06

And,U2's manager says the band has worked hard to make sure tickets are lower in cost than in the past so that fans can afford to attend the shows.

VOA: special.2009.04.10

"I am sure it can be removed."

VOA: special.2009.09.26

"How do you make sure you are designing a system where you are going to constrain risk taking, you can prevent crises from spreading,and -- if a major institution managed itself to the edge of the abyss -- that we are able to put them out of their misery."

VOA: special.2010.04.16

So make sure you understand what is the worst that can happen to your eyes and you can live with the worst."

VOA: standard.2010.03.03

The intent is to make sure that no one can discuss anything. The intent is to shout them down, to prevent intelligent discussion.

VOA: standard.2009.08.17

So are you sure there isn't anythingI can get for you? No. No, thank you.

VOA: standard.other

"And while we will continue to do everything we can, we cannot be sure what the future will hold, but we are doing our absolute level best."

VOA: standard.2009.07.29

So the challenge for us as an international community is to try to make sure we're marshaling our resources, our efforts,so that we can do the job and leave.

VOA: standard.2009.03.23

It's complicated. I'm sure I can keep up.

VOA: standard.other

The current chair of the Senate Judiciary panel - Democrat Patrick Leahy - says he will do all he can to make sure a new justice is confirmed by the time the Supreme Court reconvenes on October 5.

VOA: standard.2009.05.03