首相就新经济政策发表了一份正式声明。

The prime minister issued a formal ___declaration about the new economic policy.

律师向法庭提交了一份书面声明作为关键证据。

The lawyer submitted a ___declaration to the court as key evidence.

他在机场填写了一份海关申报单。

He completed a customs ___declaration at the airport.