10. Some bad tour guides worked with the local stores to ________ tourists who were oftenovercharged for cheap products.
(A) disprove
(B) relegate
(C) fleece
(D) spatII. Cloze (每題 1 分，共 5 分)Artificial sweeteners act as sugar substitutes, are much sweeter than the real thing, and comewithout the guilty calories. Besides being in beverages, these chemicals can be found in many otherfood products, many of (11) are labeled as sugar free and marketed to (12) who wants tolose weight or suffers from diabetes. Millions of people choose to eat and drink things with sweetenersin an effort to be more health conscious, but a recent study revealed a disturbing discovery. Scientistsfound that unlike sugar, which is (13) in the stomach, artificial sweeteners are processed in theintestines. This causes changes in intestinal bacteria, which may lead to diabetes and obesity, twodiseases that sweeteners are supposed to fight. However, the Food and Drug Administration still(14) artificial sweeteners for human consumption. Like everything else, it’s important to use themin (15) .