英语 九年级 选择题 标准 ★ 精品

谈论创意与发明相关词汇 — 英语选择题

鲁教版·英语 Unit 1 Power of Ideas AI 三重审校通过

题目
Choose the word that best completes the sentence: The young scientist spent years improving her ______ — a smart machine that can help old people walk safely. Many people admired her creative idea. A. invention B. instruction C. invitation D. introduction