Here's another interesting TED presentation. The quick gap-fill exercise below comes from the start of the talk, but I'd recommend watching the whole thing if you have time. Turn the subtitles on if you need help.
We live in difficult and challenging ______ ______, of course. And one of the first ______ of difficult economic times, I think, is public spending of any kind, but certainly in the ______ ______ at the moment is public spending for science, and particularly curiosity-______ science and exploration. So I want to try and convince you in about 15 minutes that that's a ridiculous and ______ thing to do.