It was the doctor's carelessness that ______ the serious accident.

单项选择题How much ______ she looked without her glasses!

单项选择题The air of countryside is cleaner than ______ of city, but I don't like to live ______ far.

单项选择题They used to quarrel a lot, but now they are completely ______ with each other.

单项选择题— Is ______ here — No, Bob is ill at home.

单项选择题—You wants ______ sandwich —Yes, I usually eat a lot when I'm hungry.