市长公开宣布了新的环保政策。

The mayor ___declared the new environmental policy publicly.

他坚决声明自己对这件事一无所知。

He ___declared firmly that he knew nothing about the matter.

总统正式宣布国家进入紧急状态。

The president ___declared a state of emergency for the nation.

他在报税时如实申报了所有收入。

He ___declared all his income honestly when filing the tax return.

她在演讲中明确表态支持环保政策。

She ___declared her support for environmental policies during the speech.