短文改错dear dad you are busy every day that you do not pay much attention to your healthi was worried about you i hope you can keep health you often drive to you office it is not far
问题描述：
短文改错dear dad you are busy every day that you do not pay much attention to your health
i was worried about you i hope you can keep health you often drive to you office it is not far
答
i was worried about you i hope you can keep HEALTHY you often drive to YOUR office
答
已知函数f(x)=x^4+(2-λ)x^2+(2-λ),是否存在a使得f(x)在(-∞,-1)上是减函数,在(-1,0)内为增函数？
答
就目前的这些内容,更正如下：
Dear dad,you are (so) busy every day that you do not pay much attention to your health.I (was改成am) worried about you.I hope you can keep (health改成healthy).You often drive to (you改成your) office.It is not far...
另：第一处错误也可以直接在day和that中间加上so.