1. Drunk driving is a real threat that lurks on the streets, putting the lives of you, me and all pedestrians in danger.2. When he was pulled over by the police for driving under the influence, he bravely took the alcohol test and passed it.3. When he was pulled over by the police for drunk driving, he bravely took the alcohol test and passed it.4. Compared to many other countries, penalties for drunk driving in Taiwan are heavy.
 drunk driving driving under the influence (DUI) driving while intoxicated (DWI) drunken driving operating under the influence drinking and driving這些詞都指酒駕，drink driving 也很常用，雖然文法有些錯誤。
I have been wreckng my brain on this tough math question but I still cannot solve it.