The doctor looked over Peter carefully after he _____(takes,is taken,took,was taken)to the hospital
题目
The doctor looked over Peter carefully after he _____(takes,is taken,took,was taken)to the hospital
答案
was taken to
前面检查已经是过去时 所以送到医院肯定得用过去时
是被送到医院 所以要用过去时的被动语态
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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