When changing lanes, a driver should use his turning signal to let other drivers

题型：不详难度：来源：

When changing lanes, a driver should use his turning signal to let other drivers know      ___.

A．whichever lane he is entering	B．which lane he is entering
C．whichever lane is he entering	D．which lane is he entering

答案

B

解析

试题分析：句意：当转变车道时，司机应该用方向灯让其他的司机知道他将转向哪个车道。这里是宾语从句，，其语序应该是陈述语序，根据句意故选B。
点评：本题难度适中。宾语从句是高中阶段的重难点之一，需要考生有分析理解复杂的句子结构的能力，能够正确理解句子的语境，熟练掌握关系词的意义及句法功能。这里考生容易误选D。
即学即练: She has been in      __doctors describe as a vegetative (植物人的) state for six years.
A.what             B.which            C.that               D.how
解析：A。句意：what引导宾语从句，并在从句中作宾语。