Question

on his way home yesterday. tom was hit

On his way home yesterday , Tom was hit on the head_____he had time to realize what was happening . A．since B．before C．when D．until

Answer 1

B 考查时间状语从句。句意“昨天在回家的路上，汤姆还没意识到发生了什么事，就被击中了头部。”before“在......之前，还没来得及......”。故选B。