请根据下表中的信息，写一篇介绍白鱀豚的段文（80个词左右）.

The UK is _______ European country and it’s also ______ island country.

A. an; an B. a; a C. an; a D. a; an

They pay for the treatment because ORBIS is a charity.

A. needn't to B. must

C. don't need to D. have to

—Do the Winter Olympics have similar events to______in the Summer Olympic Games?

— No. Winter Olympic Games only include winter sports.

A. those B. this C. that D. ones

New York is known ________ the world ________ a busy trade centre.

A. for; as B. for; by C. by; as D. by; for

Poor people don’t have money _______ medical treatment.

A. of B. for C. to D. as

The film _______ half an hour ago. It _______ for thirty minutes.

A. has started; has been on

B. has been on, has been on

A. started, has started

D. started, has been on

I couldn’t get through the door because there was a big box ______.

A by the way B. on the way

C. in some ways D. in the way

---Look, what have you done?

---Sorry. I think if I _____another chance, I’ll do it better.

A. give B. will be given

C. am given D. will give

It’s generous _____them to give food and clothes to homeless people.

A. as B. for C. to D. of