1、2019年高考英語二輪復習 增分篇 專題巧突破 專題四 任務型閱 專題限時檢測（二十四）任務型閱讀（一）(xx蘇、錫、常、鎮(zhèn)高三三模)A xx study by researchers might make you think twice about difficult holiday emotions. They followed dozens of bus drivers for two weeks, looking to see when they flashed fake versus sincere smiles at their passengers. The results showed that on days when the drivers tried to put on an act and pretend to be in a good mood, their actual moods got worse. This was especially true。