- Tell from plan duty principle, value added tax is with commodity (include a service, similarly hereinafter) a kind of duty that appreciation forehead is levy object, because this calls value added tax.
- I think it my duty to serve the people.
- How can I get shut of such an unwelcome duty?
- A small party of men were told off for burial duty.
- Be it our duty to comply with his request?
- He who does his duty is worthy of praising.