31.   Using a brain imaging machine called a magnetoencephalograph, subjects will be shown pictures with low and high frequency names.

32.   Using a powerful new method for glimpsing the brain in action, researchers have found the first definitive evidence that men and women use their brains differently.

33.   You have to use your brain a little bit when things get hairy on the mound.

34.   You got to constantly be using your brain.

35.   Your objectives require you to use your brain as much as your bullets.

36.   I know this is going to be a very tough fight and I have got to use my brains.

37.   I told him that I could teach him how to use his brain to numb his arm so that he would barely feel the needle.

38.   It was using her brain.

39.   Sponsored by the British based Tiger Trust - it referred to ancient Chinese medical treatments that use tiger brain to cure acne.

40.   The ad referred to ancient Chinese medical treatments that use tiger brain to cure acne.