There are a number of phrases built on the word “put”, such as put up, put out, put off and so on. The expression “putting one on” is among them. You tell a person something that he finds difficult to believe, and he may look at you more closely and ask: “Are you putting me on?” He doesn't think you are serious. Perhaps, you are joking with him, trying to test his reaction.

       The expression putting one on is closest to the phrase to put one over on a person, meaning to trick him. However, in certain light situation, many will not say to you: “Stop trying to put one over on me”, they will say: “Stop putting me on.” And when one accuses you of putting him on, he is generally not as serious as he might be.

       People who try to put you on are more often just joking, having some pleasant friendly fun. But one who is trying to put something over on you is not to be taken so lightly and usually he is not.

       There are people who like to play practical jokes on friends, to put them on in strange way, some funny, some not. This is especially true on April Fool's Day. Year after year, numbers of people let themselves be fooled by the same joke. They just forget what had happened to them the year before. One of these often repeated jokes is a telephone call. The caller changes his voice and says to his friend: “Hello, is this Mr Jones? I have an important message for you from Mr. Fox. Please call him at this number.”The caller then gives his friend the telephone number of the National Zoo.

       Unthinkingly, the friend quickly makes his call and says: “Hello, I must speak to Mr Fox. It is urgent.”

       The man on the other end says: “Who?”

       “Mr. Fox. I don't know his first name. Please hurry.”

       The man at the other end answers：“We have no Mr Fox here.” Then he realizes it is a joke and he begins to laugh and says:“Look, friend, this is the zoo. Somebody is putting your leg, putting you on.”

1．Which of the following is true?

       A．“Put one on” is often expressed and felt in a pleasant and friendly way.

       B．“Put something over on a person” is often used among close friends.

       C．Both are used to express the same feeling.

       D．Playing practical jokes on friends are always funny.

2．Mr. Jones was not able to speak to Mr. Fox because ________.

       A．the one who answered the phone didn't know Mr. Fox

       B．Mr. Fox was not in at that moment

       C．he called the wrong number and the wrong place

       D．this Mr. Fox happened to be an animal

3．This article is mainly about ________.

       A．the jokes people are likely to make on April Fool's Day

       B．the meaning of “put one on” and how to use it correctly

       C．the difference between “put one on” and “put one over on a person”

       D．April 1st, a day when people will make fun of each other