单选题 What does the underlined word “essence” in Paragraph 2 probably mean?

单选题 If you take time to explore the different layers of a person, you will find so many unique and interesting things about them that you would never know if there were _________.

单选题 —How do you find the health club?
—I it. Everyone is saying its management is going from bad to worse.

单选题 Time is a precious ________ that is often taken for granted among the young people.

单选题 －I spent a week in Xiamen last month.
－Then you must have been overcharged for sea food many a time, ______ you? This city is known for that.

单选题 －Why not turn to Kevin? He saw what happened, so his is the only _________ account.
－The problem is that he has refused to say anything about the accident.

单选题 The new hospital will be located in ________ used to be a wasteland and a huge shopping mall will also be constructed _______ there used to be a school many years ago.

单选题 Use your head; nothing taught by others can have the same effect on you as______learned through practice.

单选题 ________ in the Middle East, Jordan holds a key strategic position, _______ both Israel and Iraq.