我看向她的房间,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。
Karen's grandson walks into the room to find her ___fast ___asleep on her favourite chair.
尽管外面有噪音,婴儿整夜都睡得很熟。
Despite the noise outside, the baby remained ___fast ___asleep throughout the night.