Scientistsaretryingtodevelopasoya-basedfuelforcars,whi... 国语站 题库 2.65W 大中小设置文字大小 问题详情: Scientists are trying to develop a soya-based fuel for cars, which ____one day replace petrol. A. must B. should C. would D. may 【回答】D知识点:情态动词题型:选择题 TAG标签:#