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---Do you know what time you’ll be back this evening, Eric?
----I’m not sure. It depends on_______ the interview lasts.
A.whenB.whatC.how longD.how much
C

试题分析:A.当—时候B.什么 C.多久 D.多少句意为:艾瑞克,你知道今天晚上你什么时候回来吗?
不太确定也,要看采访持续多久咯。根据句意,可推出答案。
考点:宾语从句引导词的考察
点评:宾语从句的关键在于看从句是否缺成分,若缺主语,表语或宾语则用连接代词who whom, whose, what, which充当,若缺状语则用where,when, how, why或相关的短语充当。而且连接副词在从句中既是连接词也是从句的状语,并有各自的意义。
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