you know it! why you still do that??
you have to do it on your own.
i am who i am!
i am not quite sure. please check others.
i don't really know why i am doing this.
he/she gone out for work. maybe you have to wait a bit.
1)You know why do we need to do so
2)You have to make their own
3)I was such a person
4)I am not quite sure, you ask others you
5)Do not understand why their
6)His / her work out, or let you wait again.