当前位置: > He needs to spend time on his homework....
题目
He needs to spend time on his homework.
其中的on可以改为in吗?
因为我知道有spend time (in) doing sth.既然in后面可以跟动名词,那好像就可以跟名词的吧?

提问时间:2020-07-25

答案
He needs to spend time on his homework.==He needs to spend time( in) doing his homework
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
版权所有 CopyRight © 2012-2019 超级试练试题库 All Rights Reserved.