英语 高二 选择题 较难

构词法:常见前后缀与词性转换 — 英语选择题

译林版·英语(高中) Unit 4 Scientists who changed the world AI 三重审校通过

题目
Choose the pair of words formed from “use” that best completes the sentence: The device proved ___ in the field, so the team questioned its ___ for long-term research. A. unusable; usefulness B. useful; usefully C. disuse; useful D. usability; uselessly