they visited the Science Museum, they showed great interest in everything they saw.A. For the first time B. At firstC. At the first time D. The first time 题目和参考答案——青夏教育精英家教网—

题目内容

_______they visited the Science Museum, they showed great interest in everything they saw.

A. For the first time B. At first

C. At the first time D. The first time

【解析】

试题分析：考查连词。A.第一次……一般放在句尾B.首先；起初,一般放在句首，用逗号隔开C.第一次……一般放在句首D.连词，相当于when。句意：当他们第一次参观科技博物馆时，他们对任何事物都非常感兴趣。故选D

考点：考查连词

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