______the 2008 Olympic Games will be held in Beijing has already been decided.
题目
______the 2008 Olympic Games will be held in Beijing has already been decided.
A.Whenever
B.If
C.Whether
D.That
正解是D
请说明为什么C不能选,理由详细一点
答案
因为后面说的是has already been decided.所以前面必须是个肯定句才行,这样就不能选C了.如果选C后面应该是hasn't been decided.
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
最新试题
热门考点