• they kept him entertained until he woke to morning sun 翻译
• She kept looking behind to see if she was being followed A her &n...
• She didn'trecognized him until he took off his glasses变成半倒装
• She refused to ______ the car keys to her husband until he had promised to wear his safety belt.

they kept him entertained until he woke to morning sun 翻译

他们一直款待他直到天亮.

She kept looking behind to see if she was being followed A her &n...

B

此处表示往自己身后看．故用反身代词作宾语。

She didn'trecognized him until he took off his glasses变成半倒装

Not untill he took off his glasses did she recognize him.

She refused to ______ the car keys to her husband until he had promised to wear his safety belt.

hand in 有特指的上下级关系，而hand down用在这里则比较符合语境，有“递给”的意思