_ they visited the Science Museum, they showed great interest in everyting they saw.
A. The first time B. For the first time C. At first D. Until
纠结于选项A和B.
人气：232 ℃ 时间：2019-11-01 14:26:47
解答
A The first time 和every time ,each time 等都可以作为连词使用,引导一个时间状语从句.
而for the first time 则在句子中做状语.
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