问题补充：
一道语法题 alec asked the policeman ( )he worked to一道语法题alec asked the policeman ( )he worked to contact him whenever there was an accident.a with himb whoc with whomd whom为什么是c不是d
答案：
因为work是个不及物动词,你可以说he worked with the policeman. 但不可以说：he worked the policeman.这里的whom=the policeman
