The reason ( )he did not come is ( ) he was ill
题目
The reason ( )he did not come is ( ) he was ill
A,that,why B,that ,that C,why,that D,why,which
答案
选C
why引导后面的从句说明reason,很常见的组合.the reason why ...
is 后面本应该+名词,但因为+的是句子,所以用一个that 引导一下...is that...也很常见……
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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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