II. Cloze: Read each of the following passages and complete each passage by choosing the best answer from the four choices of each item to fill in the blank of the item. Passage 1 One of the strangest findings to emerge from the world of obesity science lately is that people who sleep less tend to our heads about why: Does lack of weigh more. But until recently, we have been stifling our yawns and (16) sleep alter our biology? Or does it affect our eating behavior? Now two reports (17) the answer is both. Both studies used functional MRI to (18) brain activation as their subjects viewed food pictures—analogous to the subjects’ (19) bombarded with a stream of McMuffin ads after a long night of working (or partying). Each study (20) that sleep loss caused areas within a key motivation network, including the striatum and anterior cingulate cortex, to go into overdrive at the mere sight of food. The same circuit perks up when addicts view images of their substance of choice. (adapted from http://www.scientificamerican.com/article.cfm?id=tired-watch-what-you-eat)