校长在大会上宣布了学校的新政策。

The principal ___announces the school's new policy at the assembly.

校长在开学典礼上正式宣布了新的校规。

The principal ___announces the new school rules at the opening ceremony.

公司宣布了一项新产品将于下月上市。

The company ___will announce a new product launch next month.

电视台每天晚上七点准时播报新闻。

The TV station ___announces the news at 7 p.m. every evening.

老师站在教室前面大声宣布今天的作业。

The teacher stands at the front of the classroom and ___announces today's homework assignment.