What ()do you need to take with you
题目
What ()do you need to take with you
A other
B else
C another
If you have learned it well ,you（）do these exercise
A needn‘t B don't have Cdon't have to Ddon't need
答案
1.what else,是固定用法,有什么其它的意思.选B
2.选A needn‘t
needn't意思是不需要.mustn't意思是不可以.
have to,是某件事使你不得不
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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