1.I am sorry,but I have a lot of () to do this evening.A.working B.homeworks C.homework D.housewor
题目
1.I am sorry,but I have a lot of () to do this evening.A.working B.homeworks C.homework D.housewor
2.People () live without air.
A.don't B.can C.can't D.do
根据句意及首字母提示完成单词
3.Two h----- teachers will give us a lecture.
4.They like having s---- lessons very much.
5.The teacher is t----- with his mother about his study.
用括号中所给单词的适当形式完成下列句子
6.Billy looks upset.What happened to ()?(he)
7.Don't throw the old watch away.It is still ().(use)
答案
C
history
science
talking
him
useable
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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