精选优质文档-倾情为你奉上2015-2020 四川省单招英语真题 汇总20151. Barack Obama is _first black president of the United States. ( )A. an B. a C. the D. 不填2. Where were you last night? I called you five times! ( )Sorry, my phone was_.A. Over B. on C. in D. off3. _the game means everything to him. ( )A. Winning B. To win C. Won D. Win4. Which one do you