Passage 3Questions 11 to 15 are based on the following passage: Chokwe Selassie is on a mission to help drivers avoid potholes(路面坑洼). The Eight-grader was inspired to kick off his mission on a recent
Passage 1Questions 1 to 5 are based on the following passage: In 2014, older Americans fell 29 million times, leading to 7 million injuries, according to a report published last week. About 2.8 milli