1.I do my homework at 10:30 in the evening.(改为否定句） I ( )( )my homework at 10:30 inthe eveing.
题目
1.I do my homework at 10:30 in the evening.(改为否定句） I ( )( )my homework at 10:30 inthe eveing.
2.We have an English lesson lesson at 8:30.(对8：30提问）
( )( )do you have an English lesson?
3.It is five thirty in the afternoon.(改为同义句）
It is( )( )( )in the afteroon.
4.It is Frifay today.(对Frifay部分提问）
( )( )( )it today?
答案
don't do
What time
half past five
What day is
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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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