Question

I was walking along the road _____ someone patted me on the shoulder from behind.

A．while

B．immediately

C．when

D．the moment

Answer 1

C               

             
试题分析：考查连词。A当。。时候B一。。就C 当。。时候 D 一。。就。句意 当我在散步时这时有个人从后面拍了我的肩膀。考查固定结构 be doing when。。。正在做某事这时。。。，故选C项。         
考点 :考查连词。