Question

The book has helped me greatly in my daily communication, especially at work ________ a good impression is a must.

A．which

B．when

C．as

D．where

Answer 1

D

试题分析：考查定语从句用法。句中的先行词为work，在从句a good impression is must中作地点状语，故用关系副词where。句意：这本书对我的日常交际有极大的帮助，尤其在工作中，良好的印象是必须的。故D正确。