His ability has never been in doubt----the question is ___________ or not he is prepared to work hard.A.thatB.ifC.whereD.whether
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D解析试题分析:whether与or not可以连用,if与or not不可以连用,其他的选项都不与or not连用。故选D。考点:考查连词的用法。点评:本题难度适中。判断从句中用哪个连词,需用记住连词的用法,在句中的作用,连词也是高考的热点,需要考生平时多练习。需要考生会分析句子成分理解句意。即学即练:Don't leave it _______ the kids can reach it.A. that B. if C. where D. whether解析:C。句意:不要把它放在孩子们能够到的地方。