1:这个是不是跟讲地球绕着太阳转一样的事实呢?要是这样用现在时也行吧.
2:细菌本身就是复数型名词.
这都是我的个人意见,不一定对,就是探讨探讨.
新概念3册55课For most of the earth's history they have been the only form of life on our planet.
新概念3册55课For most of the earth's history they have been the only form of life on our planet.
应该是过去完成时才对吧?因为是细菌作为the only form of life的这个状态已经不存在了啊,还有they是不是应该改为it呢,因为它代指的应该是bacteria吧?请高手为我解惑,
应该是过去完成时才对吧?因为是细菌作为the only form of life的这个状态已经不存在了啊,还有they是不是应该改为it呢,因为它代指的应该是bacteria吧?请高手为我解惑,
英语人气:144 ℃时间:2020-02-03 12:40:52
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