I cannot hear the professor clearly as there is too much noise ________ I am sit

题型：不详难度：来源：

I cannot hear the professor clearly as there is too much noise ________ I am sitting.

A．before

B．until

C．unless

D．where

答案

D

解析

before在……之前，until直到 unless除非 where在……地方，句意为，我听不清那个教授在讲什么，因为在我现在坐的地方噪音太大。故选择D项。
【考点定位】考察连词的用法。