被动语态的填空题!
题目
被动语态的填空题!
用括号内所给词的正确形式填空完成句子.
1._____recorders_____(use) in your class every day?
2.when_____your new car ____(buy)?
3.in which country _____Dolly____(clone),do you know?
4.-Must the work ____(do) now?
- No,it may ___(finish) tomorrow.
答案
1.Are...used
2.was ...bought 买车的动作已经发生,所以用过去式
3.was ...cloned解释同上
4.be done
be finished
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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