摘要：The United Nations in 1945. A．were found B．were founded C．was founded D．was found20. were also invited to the party. A．Mr Smith B．The Smith C．The Smiths D．Smiths
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The United Nations ________ in 1945 to promote peace, security, and economic development．
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A．were sent up
B．was found
C．were set up
D．was founded