if it had not been for ..句型对吗
题目
if it had not been for ..句型对吗
if it had not been for your timely assistance in giving me first aid,I fear that the consequences might have been much serious.这句话的开头:if it had not been for...,是if it is not 的过去完成时?
答案
本句的结构是——条件状语从句:If it had not been for your timely assistance in giving me first aid,如果当时在对我的急救的过程中没有你的及时帮助主句:I fear that我恐怕宾语从句:the consequences might h...
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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