写出对话所缺的单词.
题目
写出对话所缺的单词.
A:What ( )our classmates ( )on the playground just now?
B:They ( )football.There( )a football game between Class A and our class.
A:( )you go and ( ) it?B:Yes,I( ).
A:( ) won the game?
B:3 to 2.Our class won.
A:That's great!
答案
A:did,do
B:played,was
A:Did,play
B:did
A:Who
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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