Question

.The Forbidden City is an area ＿＿ once only the emperor, his family and officials were allowed.

A．which

B．who

C．where

D．whose

Answer 1

C

考查定语从句。句中先行词为area，在从句中作地点状语，故用关系副词where。句意：紫禁城是一个只有皇帝、他的家人和官员被允许进入的地方。