the key to...这是一个固定用法 ...的关键
这里的to是介词 不是不定式 介词后面跟动词ing 所以用solving
不定式后面永远用动词原形
你要搞清楚to的词性
the key ————the accident is————out who violated the traffic
3个回答
相关问题
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An accident is （） the traffic
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The careless driver is ___ for the traffic accident ___ yest
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If the driver is always absent-minded,the traffic accident _
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The careless driver is (to blame )for the traffic accident (
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the traffic accident happened on a rainy night.= the traffic
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The driver was not___the traffic accident.
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——the survivors in the traffic accident appreciated the poli
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_____ the terrible scene of the traffic accident, the little
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_______ the terrible scene of the traffic accident,the littl
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The boy losing the key yesterday is my son The boy who who l