电影开始时，前排的观众赶紧示意后排的孩子安静下来。

When the movie started, the audience in the front row quickly ___shushed the noisy kids behind them.

图书馆里，管理员用嘘声提醒学生们保持安静。

The librarian ___shushes the students to remind them to stay quiet in the library.