has sam finidhed his homework today?I have no idea.He ----it this morning .a did Bhas done C was don

has sam finidhed his homework today?I have no idea.He ----it this morning .a did Bhas done C was don

题目
has sam finidhed his homework today?I have no idea.He ----it this morning .a did Bhas done C was done 一定说了理由
答案
选择A,因为this morning是一般过去时的时间状语,所以选用do的过去式did.
这句话的意思是说sam今天的作业完成了吗?-我不知道.他今天早上做的.
所以这件事是发生在过去的,陈述过去一般事实.
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
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.