学校调查了学生对新食堂的满意度。

The school ___surveyed students about their satisfaction with the new cafeteria.

建筑师们在建造新公园前仔细勘测了这片土地。

The architects carefully ___surveyed the land before designing the new park.

他站在山顶仔细地观察了整个山谷。

He stood on the hilltop and ___surveyed the entire valley carefully.