Question

You must notice ________ the emergency exit is when you enter the building.

A．which B．where

C．what D．in which

 

Answer 1

B

【解析】答案：B　考查宾语从句。句意为：当你进入大楼时，必须要留意紧急出口在哪儿。此处是where引导的宾语从句。故B项正确。