Excuse me,could you please tell me which gate ___?
题目
Excuse me,could you please tell me which gate ___?
A.we have to go to
B.we had to go to
C.do we have to go to
D.did we have to go to
答案
后面是宾语从句,直述就行,排除CD
这是对话,问路的
不需用过去时
选 A
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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