将下列句子改为被动语态 we planted thousands of trees yesterday(一般过去时)
题目
将下列句子改为被动语态 we planted thousands of trees yesterday(一般过去时)
I will finish my homework tomorrow.(一般将来时)
They have made good use of their time in class. (现在完成时)
You can eat the apple now.(含情态动词)
答案
Thousands of trees were planted by us yesterday.My homework will be finished by me tomorrow.Their time has been made good use of by them in class.The apple can be eaten by you now.
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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