首页
›
答案
›
题库
›
知到智慧树
›
未分类
There are times（）everyone needs to be alone.
There are times（）everyone needs to be alone.
A.whom
B.who
C.when
D.whose
正确答案：when
标签：
英语语法
上一条：
Jim seems（）on becoming a musician.
下一条：
In the dark street， there wasn’t a single person（）she could turn for help.