根据句意用适当的介词填空.
题目
根据句意用适当的介词填空.
1.What do you usually do () the first day of school?
2.Her little sister is afraid () dogs.
3.I thing it is a hard time () me now.
4.We'll bring food () our homes to help the poor.
5.Thank you very much () your help.
答案
1.What do you usually do【at】the first day of school?2.Her little sister is afraid【of】 dogs.3.I thing it is a hard time【with】me now.4.We'll bring food【to】 our homes to help the poor.5.Thank you...
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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