不能省略但是that可以1在介词+whom与介词+which中,whom,which不能省略.Do you know any shops nearby in which I can buy flowers?That is the headmaster with whom my father was talking just now.注:当介词放在...
可以省略,也可以换成THAT 这是个定语从句,关系代词在从句作宾语成分,所以关系代词可以省略, 先行词是book, i am looking for the book. 先行词是物,所以可以用WHICH 或者THAT 此句可以变成 This is the book i am looking for. this is the book which/t...