The policeman caught hold of the thief and hit him the head．
A. in the
B. on his
C. on the
D. in his
网友回答
A. in the
B. on his
(答案→)C. on the
D. in his
解析：句意：警察抓住了那个小偷并打了他的头。 固定搭配: hit （打）/ kick（踢）/take sb in/on/by the +身体部位，当打击身体比较坚硬的，比如头部、屁股、背膝盖之类的部位时用 on ，但是打击身体比较柔软的部位时，如肚子，眼睛，脸蛋，用in（因为比较柔软打击时会凹陷进去，就是in），还有就是用于衣角，衣领，裤腿等人穿戴的物品，或者抓住胳膊，腿等，要用by，比如take sb by the arm /collar。但是部位前要加the，不用his是固定搭配。故选C。