The officer asked them to state their names and give themselves a lie detector test.
They are themselves while he is not like himself.
He was speculative at themselves
Sherry and Cara only ever think about themselves.
state of the art
This can be an example sentence with the use of the word city-state. "People from different city-state have different norms and values."
He was in a state of coma after the accident. This is an example of WAS IN in a sentence.
state of change
Easy. The family and their friends keep to themselves and never talk to anyone else.
They did that project all by themselves.
The use of commas depends on the way a sentence is constructed, not on the words themselves.
California is a state. You use it as a noun
Get in the van....to the state department ;D