我朝她的房间看去，但她仍然熟睡着。

I looked into her room but she was still ___fast ___asleep.

凯伦的孙子走进房间，发现她在她最喜欢的椅子上熟睡着。

Karen's grandson walks into the room to find her ___fast ___asleep on her favourite chair.

尽管外面噪音很大，他整晚都熟睡着。

Despite the loud noise outside, he remained ___fast ___asleep throughout the night.