"Make-A-Wish” is one of the world's most well-known charities(慈善机构) . It makes wishes come true for childrenwho have serious illnesses. It gives them hope and joy and helps them forget about their health problems and have fun.
It all started in 1980  in Phoenix, Arizona. Christopher was a 7-year-old boy who was very sick. He always dreamed ofbecoming a police officer. Tommy Austin and Ron Cox, two police officers, made his wish come true. They gaveChristopher a tour of the city in a police helicopter(直升飞机)and made a real police uniform(制服) for him.
There are four kinds of wishes children usually have:
I wish to go. Children usually want to travel or go to a concert, a game or a park.
I wish to meet. Children sometimes want to meet their favourite actors, singers or
players.
I wish to be. Some children wish to become actors, singers or police officers.
I wish to have. They often want to have a computer, a game, a bike or many other things.
Let’shope more wishes will come true in the future. People who work in the charity always try for the best. Almost25 ,000 Volunteers help, work or give money. Will you be one of them?
"Make-A-Wish" is a charity to help _______.

A．sick children	B．serious officers
C．famous actors	D．popular singers

What did the two police officers do for Christopher?

A．They gave him a computer.

B．They gave him a tour of the city.

C．They took him to a concert.

D．They took him to the hospital.

Which kind of wishes does Christopher have?

A．I wish to go.	B．I wish to meet.
C．I wish to be.	D．I wish to have.

The purpose of the last paragraph is to _______.

A．explain what " Make-A-Wish" is

B．encourage more people to join the charity

C．tell us how Christopher's wish came true

D．introduce different kinds of children's wishes

Which of the following is TRUE according to the passage?

A．Sick children just wish to get well.

B．Christopher and Tommy are two officers.

C．A few people are working for "Make-A-Wish".

D．"Make-A-Wish" has a history of over 30 years.