Living in the central Australian desert has its problems,__o____ obtaining water is not the least.
题目
Living in the central Australian desert has its problems,__o____ obtaining water is not the least.
为什么填of which
He _______ my letter that I sent last month.
A.replied to B.replied C.answered to D.answered for
为什么选A
答案
of which=whose是名词所有格,表示"某某的"第一句话的意思是在澳大利亚中部的沙漠居住会(遇到)一些问题,它的取水(的问题)还不是最基本的.因为obtaining water是个动名词词组,是名词性质的,所以前面会用所有格来修饰
第二题reply to 表示回信,是个固定搭配
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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