用所给动词的适当形式填空
题目
用所给动词的适当形式填空
The Greens_________(fly)to Paris next Monday.They__________(stay)there for 2 weeks.
I___________(not finish) reading the book.I ________(return)it in three days.
Has you mother________(come)back from work?
No,she hasn't.She_________(not come) back until 6:30.
答案
The Greens___will fly______(fly)to Paris next Monday. They__will have have stayed________(stay)there for 2 weeks.
I__haved__not finished_______(not finish) reading the book.I __will return ______(return)it in three days.
Has you mother___come_____(come)back from work?
No,she hasn't.She_doesn't come________(not come) back until 6:30.
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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．
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