The agency can't really ensure their client's behavior, but you would know that it had done its very best to choose only well-behaved children.
The agency only chose well-behaved kids.
The agency just took whatever kids showed up.
The local pottery is very plain.
She is playing a banjo.
The fire engine is a toy.
The folk dancers are wearing bright clothing.
Almost
The EPA says it has considered potential impact on the firms.