I missed that film yesterday.这句话空
题目
I missed that film yesterday.这句话空
I missed that film yesterday.
这句话空白处应填seeing 还是saw,
If he sell his old car he won't buy a new house.空白处应填doesn't 还是isn't going
答案
1应填seeing ,即动词的分词形式,如果填saw,在一个简单句里出现两个动词,且没有连词,不符合语法
2 应填doesn't,主句是将来时,状语从句用一般现在时
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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