1 ___is known to us all is that the 2008 Olympic Games will take place in beijing.
题目
1 ___is known to us all is that the 2008 Olympic Games will take place in beijing.
A.It B.What C.As D.Which
3.__ is reported in the newspaper,talks between the two countries are making progress.A.It B.As C.That D.What
答案
B,主语从句,修饰ALL,在从句中做主语.只能用WHAT.
B,定语从句,有逗号隔开,引导词又是在句首,只能选AS
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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