将下面的英语句子变成复数形式
题目
将下面的英语句子变成复数形式
一、this is a potato.二、the boy is playing hide and seek.三、there is a flower in the garden.四、it is a bird.五、there is a sheep.
答案
1.these are photos 2.the boys are playing hide and seek 3.these are flowers in the garden 4.they are birds 5.there are some sheep 希望可以帮助你,
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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