______ after the Second World War that test pilots first attempted to break the sound barrier.

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问题 ______ after the Second World War that test pilots first attempted to break the sound barrier.

选项 A、It was shortly
B、There was shortly
C、Was shortly
D、Shortly

答案A

解析 这是强调句,强调时间状语。
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本试题收录于: 英语题库普高专升本分类
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