7. The underlined word "them" in the first paragraph refers to ________.

　A. bad habits B. good habits C. children D. other persons

8. Generally speaking, it's difficult for one ________ and easy for them ________ which should be avoided.

　A. to form bad habits; to form good habits B. to form good habits; to form bad habits

　C. to form such habits as will be good; to get rid of bad habits D. to get rid of bad habits; to form good habits

9. Why should we pay much attention to the formation of habits?

　A. Because habits are of great help to every one of us.

　B. Because a man can never get rid of a habit.

　C. Because it's hard and sometimes even impossible to throw away bad habits.

　D. Because we are forced to do them again and again.

10. According to the passage, early rising ________.

　A. has something to do with success B. is an easily formed habit

　C. is such a habit as should have been avoided D. is such a habit as will be kept