Habits, whether good or bad, are gradually formed． When a person does a certain thing again, he is driven by some unseen force to do the same thing repeatedly, then a habit is formed． Once a habit is formed, it is difficult, and sometimes impossible, to get rid of． It is therefore very important that we should pay great attention to the formation of habits． Children often form bad habits, some of which remain with them as long as they live． Older persons also form bad habits lasting as long as they live, and sometimes become ruined by them．
There are other habits which, when formed in early life, are of great help． Many successful men say that much of their success has something to do with certain habits in early life, such as early rising, honesty and so on．
Among the habits which children should not form are laziness, lying, stealing and so on．These are all easily formed habits．Unfortunately older persons often form habits which could have been avoided ．
We should keep away from all these bad habits, and try to form such habits as will be good for ourselves and others．
________ are formed little by little．

A．Good habits

B．Bad habits

C．Both good habits and bad habits

D．Either good habits or bad habits

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

A．bad habits

B．good habits

C．children

D．other persons．

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．

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