他安静地坐在沙发上，读着一本书。

He sat ___quietly on the sofa, reading a book.

大约晚上八点，我正在客厅安静地看电视，这时电话响了。

It was about eight o'clock in the evening, I was watching TV ___quietly in my living-room when the phone rang.

她安静地走过图书馆。

She walked ___quietly through the library.