17.All the doctors in the hospital insisted that he ________ at once. A. be operated B. must be operated on C. operate on D. be operated on 这道题为什么选D 而不选A
这个A D都可以的,优先取D答案 operate 不及物动词 开刀 operate on sb operate 及物动词 对...开刀 be operated 所以字典里面 operate 取 开刀 意思 都做不及物动词 有些词典 及物动词 也取 对...开刀 的意思 当两个答案都有的时候 优先取不及物动词吧 The surgeon operated on her for a tumor. 医生为她的肿瘤开刀 He'll have to be operated for his tumors. 他的肿瘤得开刀。 望采纳!