We have received many letters, but some of them are i_________（不相关的；不重要的）to the case.
举一反三
- We have received many letters, but some ot them are i_________（不相关的；不重要的）to the case.
- We should admit that old people have some _____ habits that have been with them for many years. And usually they are not ready to get rid of them.
- We may have some ______ long before we put them on paper.
- I have many friends, ________ some are businessmen.
- I am going to have my letters type tomorrow afternoon if I"ve got them ready by then.