同学你好，该知识点来自沪江网校《零基础直达BEC商务英语高级【四项全能实战签约班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好
have sb doing sth有如下用法：
1)表达预期的目标，常与表示一段时间的状语连用
I'll have you speaking English in six months.我将使你在六个月内会说英语。
will you really have her driving in three days?你真的让她三天后开车吗?
2)与can't或wont连用，表达不可容忍的情况2)与can't或wont连用，表达不可容忍的情况2)与can't或wont连用，表达不可容忍的情况
We can' t have them forcing their views on everyone else。我们不能容许他们把自己的观点强加于其他所有的人。
I won't have him sitting down to dinner in his overalls我将不让他穿着工作服坐下来吃饭。

而have it killed是表示把狗杀了，狗是被杀，所以要用被动态哦

祝学习愉快！