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15.It doesn't matter _________you turn right or left at the crossing---both roads lead to the park.(  )
A.whetherB.howC.ifD.when

分析 句意:你在十路口向右拐还是向左拐都没关系--两条路都可以到达公园.

解答 答案:A 此题考查主语从句.It是形式主语,真正的主语是whether引导的从句.和or连用时,用whether引导主语从句.if作"是否"讲时,不引导主语从句.故选A.

点评 考查主语从句.主要要记住引导主语从句的连词,然后根据句意选择连词即可.

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