I think everyone wants to do the job which he has been trained .A. onB. forC. byD. of

问题补充：

I think everyone wants to do the job which he has been trained .

A. on

B. for

C. by

D. of

答案：

A. on

(答案→)B. for

C. by

D. of

解析：考查介词辨析。本题的for表示的是目的，for的宾语实际上是关系代词which,该关系代词指代的是先行词the job；句意:我认为每个人都想做他为之培训的那份工作。故B正确。