Bicycles have been around in our life for more than hundreds of years, but no one knows who ________ the first bicycle.
A.inventedB.had inventedC.has inventedD.would invent在线课程A
句意:自行车出现在我们的生活中有好几百年了,但是没人知道是谁发明了第一辆自行车。根据句意可知设空处应该用过去时,因此排除C项,B项过去完成式表示“过去的过去”,D项表示“过去将来”,均不符合本题要求。
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Bicycles have been around in our life for more than hundreds of years, but no one knows who the firs
编辑:chaxungu时间:2026-04-24 12:57:42分类:高中英语题库
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