"I'm sure that it has security reasons. Nevertheless, I think they could have done a better job."

VOA: standard.2010.02.17

So,basically,that's how I started. Sometimes I'm not sure if I've done the right thing or not."

VOA: standard.2010.07.20

I'm sure that he has all those reports. He knows about all of this,"

VOA: standard.2009.08.23

I'm not sure if that's the right word, but they were surprised nonetheless."

VOA: standard.2010.01.31

I'm not sure that also the United States will also make the difference.

VOA: standard.2009.04.10