找出下面句子中的错误
题目
找出下面句子中的错误
1．Tony and Bill is going to play basKetball.
2.Did you saw elephantsat Animal Land?
3.Whatdid Peter eating for breakfast last Sunday?
答案
1．Tony and Bill are going to play basKetball.
因为主语是复数,所有用are.
2.Did you see elephantsat Animal Land?
did后面跟动词原型.
3.What did Peter eat for breakfast last Sunday?
同上.
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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