英语 九年级 填空题 简单

who/that引导的定语从句 — 英语填空题

外研社版(主编:孙有中)·英语 Unit 4 Heroes AI 三重审校通过

题目
用 who 或 that 填空:1. Yuan Longping is the scientist ___ helped millions of people with his rice research. 2. A hero is a person ___ never gives up when facing difficulties.