he walked into an shop after having been caught in a shower
题目
he walked into an shop after having been caught in a shower
如题 为何要用having been?
答案
he walked into an shop after having been caught in a shower
首先【after】是介词,所以后面加的是ing形式
其次确定时态
因为动作是发生在过去,而且对现在有影响 因为是已经在雨里淋过了之后,所以用动名词的现在完成时形式
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
最新试题
热门考点