(2013·高考山东卷) I have to give a speech,I get extremely nervous before I start.
A. Whatever
B. Whenever
C. Whoever
D. However
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A. Whatever
(答案→)B. Whenever
C. Whoever
D. However
解析:选B。句意:每当我必须演讲时,在开始前,我都变得非常紧张。whatever“任何事物,一切事物;无论怎样”,引导名词性从句或让步状语从句;whenever“每当;无论什么时候”,引导时间状语从句或让步状语从句;whoever“……的人;无论是谁,不管是谁”引导名词性从句或让步状语从句;however“不管怎样”,引导让步状语从句。故只有whenever符合句意。