For each set of sentences, pick the word that best fits. Do not use one word more than once.
Neutrinos travel through the Earth all the time without being detected.
With the minutes ticking down, fingers tap nervously on desks and computer keyboards. There's an occasional sigh. The young man once known in the halls of power only as M.E. shuffles into the room. I was picketing because I was put in jail for a video they said I didn't bring back. This is for a number of reasons.