急Get over,take away ,keep out,等,them要放在中间还是放后边?怎么判断?为什么是Get

急
Get over,take away ,keep out,等,them要放在中间还是放后边?怎么判断?
为什么是Get over them,take them away?什么时候Them要放中间?
什么动词副词的？