The scientist says this mission has been planned for many years, but he is not sure when it will happen.

VOA: special.2010.05.25

They want to be sure that he is not dealing off the bottom of the stack of cards.

VOA: special.2009.11.22

Michael J.Fox says he is sure that a cure for Parkinson's disease will be found in the future.

VOA: special.2009.04.07

That is because no one knows or sure if he really lived.

VOA: special.2009.02.21

They are watching to make sure he is dealing honestly.

VOA: special.2009.11.22

Pillay says he has seen significant improvement and is sure the target of five percent transmission rate will be reached.

VOA: standard.2010.07.01

He says no one seems sure of how bad the situation is, or what will happen down the road.

VOA: standard.2010.05.06

He said they want to make sure that the new cap is not causing the oil to escape elsewhere.

VOA: standard.2010.07.16

But Cheney said he is not sure the Obama administration will do what is necessary to keep Iran from developing nuclear weapons.

VOA: standard.2010.02.14

Mr.Obama said once the decision is made he will make sure the American public fully understands the new war strategy and all it entails.

VOA: standard.2009.11.13

Republican Congressman Jeff Flake said at the news conference he supports opening up to Cuba even though he is not sure how its government would react.

VOA: standard.2009.05.06

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