单项选择题 In a competitive and fast-paced modern society, busy business executives are so （） their work that they hardly know what the word leisure means.

He hasn‘t analyzed why he tips so generously, but I thi...

单项选择题He hasn‘t analyzed why he tips so generously, but I think the proclivity stems from his high school years, when he worked as a busboy.（）

There were still a few surprises, as a squeal here and ...

单项选择题There were still a few surprises, as a squeal here and there in the dark announced, but we did learn to ―see with our feet‖ – lessons in trail Braille.（）

Browse one of the websites that hosts them, like YouTub...

单项选择题Browse one of the websites that hosts them, like YouTube or Google Vides, and you‘ll see drunken karaoke, babies being born, plane crashes,freakish sports accidents and far, far stranger things.（）