高一英语选择题 需要理由It's said that one kind of time machine _____ by a sceientist ,with which man can travel wherever he would like. A.had been invented B.has been invented C.had been dicovered D.has discovered
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高一英语选择题 需要理由It's said that one kind of time machine _____ by a sceientist ,with which man can travel wherever he would like. A.had been invented B.has been invented C.had been dicovered D.has discovered
高一英语选择题 需要理由
It's said that one kind of time machine _____ by a sceientist ,with which man can travel wherever he would like.
A.had been invented B.has been invented
C.had been dicovered D.has discovered
高一英语选择题 需要理由It's said that one kind of time machine _____ by a sceientist ,with which man can travel wherever he would like. A.had been invented B.has been invented C.had been dicovered D.has discovered
选B.现在完成时的被动语态:have/has been done
B
据说时空机器已经被发明出来了,乘坐它人们想去哪里就能去哪里
选A 过去完成时
机器是被发明而不是被发现的,可以排除C和D
时态用过去完成时,选A