题目内容
【题目】The Chinese people____gunpowder in the 9th century.
A. discovered B. discover C. will discover
【答案】A
【解析】由in the 9th century可知此句用一般过去时态,应选A.
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题目内容
【题目】The Chinese people____gunpowder in the 9th century.
A. discovered B. discover C. will discover
【答案】A
【解析】由in the 9th century可知此句用一般过去时态,应选A.